Data transmitting apparatus and data receiving apparatus

ABSTRACT

This invention relates to a data transmitting apparatus and a data receiving apparatus, which multiplexes and transmits HD-SDI signals, and which receives the multiplexed and transmitted HD-SDI signals. The data transmitting apparatus is characterized by being equipped with a parallel data forming section which forms word string data De based on HD-SDI signals DHS of n channels, a data multiplexing section which obtains multiplex word string data Dm based on De, a multiple channel data forming section which forms bit string data DSX of m channels from Dm, a data multiplexing and P/S converting section which forms bit string data DTG based on DSX and in which a bit rate is set to 10 Gb/s or more, and an electric photo converting section which sends away DTG.

CROSS REFERENCES TO RELATED APPLICATIONS

The present invention contains subject matters related to JapanesePatent Application JP 2004-117851 filed in the Japanese Patent Office onApr. 13, 2004 and Japanese Patent Application JP 2004-331355 filed inthe Japanese Patent Office on Nov. 16, 2004, the entire contents ofwhich being incorporated herein by reference.

BACKGROUND OF THE INVENTION

1. Field of Invention

The invention relates to a data transmitting apparatus which transmitsbit string data, which is used on the occasion of carrying outtransmission of a serial digital video signal which forms bit stringdata having a bit rate implemented in relation to a standard, and a datareceiving apparatus which receives bit string data transmitted from thedata transmitting apparatus.

2. Description of Relevant Art

In the field of video signals, from a viewpoint of realizingdiversification of information to be transmitted, high quality ofreproduced images, etc., efforts of digitization have been made in aproactive manner, and digital video signals, which are formed by digitaldata representing video signal information, have been proposed withseveral different systems. For example, a 4:2:2 component digital videosignal which is formed by digital data representing video signalinformation under a standard television system in which the number oflines in each frame is set to 525 lines (hereinafter, referred to as D1signal), a digital video signal under a HDTV (High DefinitionTelevision) system in which the number of lines in each frame is set to1125 lines (hereinafter, referred to as HD signal), etc. have beenknown.

The D1 signal is configured, for example, by such a process that wordmultiplexing processing is applied to Y data series which were made as10 bit word string data representing a luminance signal component in avideo signal, and C_(B)/C_(R) data series which were made as 10 bit wordstring data representing color difference signal component in the videosignal. In addition, the HD signal is formed as word string data whichfollowed a predetermined data format, and there are a Y, C_(B)/C_(R)type one which is composed of the Y data series and the C_(B)/C_(R) dataseries, and a G, B, R type one which is composed of G data series, Bdata series and R data series which represent a green color originalcolor signal component, a blue color original color signal component anda red color original color signal component in a video signal.

On the occasion that the suchlike digital video signal is transmittedthrough a signal transmission path which is configured by an opticalsignal transmission cable etc. formed by, for example, a coaxial cableand an optical fiber, a structure of the signal transmission path issimplified, and because of that, serial transmission becomes to bedesired, in which transmission, a digital video signal is converted fromword string data into bit string data (serial digital video signal) andthen, transmitted. Then, as to serial transmission of the D1 signal andserial transmission of the HD signal, they are standardized by SMPTE(Society of Motion Picture and Television Engineers) in the UnitedStates, respectively, and as to the D1 signal, transmission, which wascompliant with SDI (Serial Digital Interface) by SMPTE 259M which is astandard established by SMPTE, is carried out (see, SMPTE STANDARD SMPTE259M-1997, for Television -10-Bit 4:2:2 Component and 4fsc CompositeDigital Signals-Serial Digital Interface), and in addition, as to the HDsignal, transmission, which was compliant with HD-SDI (HighDefinition-Serial Digital Interface) by SMPTE 292M which is a standardestablished by SMPTE, is carried out (see, SMPTE STANDARD SMPTE292M-1998, for Television—Bit-Serial Digital Interface forHigh-Definition Television Systems).

In the transmission which was compliant with SDI, the standard definesthat a data rate (bit rate) of a serial digital video signal, which isbit string data being transmitted through a signal transmission pathformed by a coaxial cable, an optical transmission cable etc., is setto, for example, 270 Mb/s. That is, on the occasion of transmission of aserial digital video signal to be used for the transmission which wascompliant with SDI (hereinafter, referred to as SD signal), a bit rateof the SD signal is to be set to for example, 270 Mb/s. On one hand, onthe occasion of the transmission which was compliant with HD-SDI, thestandard defines that a bit rate of a serial digital video signal, whichis transmitted through a signal transmission path formed by a coaxialcable, an optical signal transmission cable etc., is to be set to 10.485Gb/s or 1.485/1.001 Gb/s (in this application, both of these bit ratesare referred to as 10.485 Gb/s). That is, on the occasion oftransmission of a serial digital video signal to be used for thetransmission which was compliant with HD-SDI (hereinafter, referred toas HD-SDI signal), a bit rate of the HD-SDI signal is to be set to 1.485Gb/s.

As to the HD-SDI signal among the SD signal and the HD-SDI signal whichare the suchlike serial digital signals, an HD signal, which becomes itsbasis, is limited to one having a predetermined data format(hereinafter, referred to as source format). A source format, which thesuchlike limited HD signal has, is to be defined by parameters of forexample, a frame rate: 24 Hz or 24/1.001 Hz (in this application, bothof them are referred to as 24 Hz), 25 Hz or 30 Hz or 30/1.001 Hz (inthis application, both of them are referred to as 30 Hz), effective linenumber in each frame: 1080 lines (total line number in each frame: 1125lines), effective word number in each line: 1920 words, word bit number(quantifying bit number): 10 bits, data format: Y, C_(B)/C_(R) format,and so on.

Under the suchlike situation, as to digital video signals, with the aimof further improvement of resolution of an image which is reproduced onthe basis of it, further pursuit of image quality improvement etc., asto parameters which define its data format, it has been proposed to seta frame rate to 60 Hz or 60/1.001 Hz (in this application, both of themare referred to as 60 Hz) or 90 Hz or 90/1.001 Hz (in this application,both of them are referred to as 90 Hz), to make the effective linenumber in each frame and the effective word number in each line largerthan 1080 lines and 1920 words, e.g., approximately twice of 1080 linesand 1920 words, without limited them to 1080 lines and 1920 words, toset the word bit number to bit number which exceeds 10 bits, forexample, 12 bits, 14 bits etc., and further, to set a data format to theG, B, R format, and so on. As examples of digital video signals whichfollowed the such proposals, there are one which data format is definedby parameters of for example, frame rate: 60 Hz, effective line numberin each frame: 1080 lines, effective word number in each line: 1920words, word bit number: 12 bit, data format: G, B, R format, etc.(hereinafter, referred to as next generation camera signal), one whichdata format is defined by parameters of for example, frame rate: 90 Hz,effective line number in each frame: 1080 lines, effective word numberin each line: 1920 words, word bit number: 14 bit, data form at: G, B, Rformat, etc. (hereinafter, referred to as HD super motion signal), andfurthermore, one which data format is defined by parameters of forexample, frame rate: 24 Hz, effective line number in each frame: 2160lines, effective word number in each line: 4096 words, word bit number:12 bit, data format: G, B, R format, etc. (hereinafter, referred to as 4k×2 k signal), and so on.

Also as to each of these next generation camera signal, HD super motionsignal, 4 k×2 k signal etc., on the occasion of its transmission, serialtransmission becomes to be desired, in which transmission, a digitalvideo signal is converted from a parallel digital signal forming wordstring data into a serial digital video signal forming bit string dataand then, transmitted.

SUMMARY OF THE INVENTION

As described above, on the occasion of transmission of the HD-SDI signalin which a bit rate is set to 1.485 Gb/s defined by a standard, thereare quite a lot of cases in which it is desired to transmit HD-SDIsignals of multiple channels having information contents which aredifferent from one another, at the same time. On that occasion, in orderto realize the efficiency of transmission, it is conceivable to transmitand receive HD-SDI signals of multiple channels, as one in whichmultiplexing processing as to them was carried out, through a commonsignal transmission path. However, in the past, there is also a problemof frequency band boundary of an actual signal processing circuitsystem, and therefore, a transmission system, which used a signalprocessing method enabling to realize transmission and reception undersuch a state that multiplexing processing as to HD-SDI signals ofmultiple channels was carried out, has not yet been put to practicaluse. In addition, a signal processing method which enables to transmitand receive HD-SDI signals of multiple channels under such a state thatmultiplexing processing as to them was carried put, and furthermore, adocument etc., which described as to a transmission system which usedit, have not yet been found.

In addition, each of the above-described next generation camera signal,HD super motion signal, 4 k×2 k signal etc. is one which belongs to aso-called ultra wide band video signal, and then, it is tried to carryout serial transmission which is desired as descried above, inaccordance with a past transmission engineering method, it becomes torequire signal processing covering an extremely wide frequency band, ascompared with a case of serial transmission as to HD-SDI signals.Therefore, in the past, an actual transmission system which can beavailable for practical use as to each of the above-described nextgeneration camera signal, HD super motion signal, 4 k×2 k signal etc.and which can carry out serial transmission, or, a document etc. whichdescribed as to such a transmission system, have not yet been found

Furthermore, as described above, also on the occasion of transmission ofthe SD signal in which a bit rate is set to 270 Mb/s defined by astandard, there are also quite a lot of cases in which it is desired totransmit SD signals of multiple channels having information contentswhich are different from one another, at the same time, or to mix SDsignals and HD-SDI signals of multiple channels to transmit them at thesame time. On that occasion, it is conceivable to transmit and receiveSD signals of multiple channels, or SD signals and HD-SDI signals ofmultiple channels, as one in which multiplexing processing as to themwas carried out, through a common signal transmission path. However, inthe past, there is also a problem of frequency band boundary of anactual signal processing circuit system, and therefore, transmissionsystem, which realized serial transmission under such a state thatmultiplexing processing as to SD signals of multiple channels, or SDsignals and HD-SDI signals of multiple channels was carried out, as onewhich is available for practical use, or a document etc., whichdescribed as to such a transmission system, have not yet been found.

In view of such points, an invention according to an embodiment of theinvention provides a data transmitting apparatus and a data receivingapparatus which can effectively carry out serial transmission of HD-SDIsignals of multiple channels, in which it becomes possible to transmitand receive HD-SDI signals having standardized bit rate under such astate that multiplexing processing as to the multiple channels wascarried out, and in addition, can realize serial transmission as to eachof the next generation camera signal, HD super motion signal, 4 k×2 ksignal etc., as a form which is available for practical use, andfurther, can realize serial transmission of SD signals of multiplechannels, or SD signals and HD-SDI signals of multiple channels, undersuch a state that multiplexing processing as to them was carried out, asa form which is available for practical use.

A data transmitting apparatus according to an embodiment of theinvention is configured to include a plurality of serial/parallelconverting (S/P converting) means to which first serial digital videosignals of n channels (n is an integer of 2 or more, same in whatfollows) forming bit string data, each of which has a bit rate definedby a standard, are supplied, to obtain first word string data of nchannels forming a parallel digital video signal, each of which has aline portion data structure defined by a standard, a plurality of 8bit/10 bit converting (8B/10B converting) means to which the first wordstring data of n channels, which is obtained from the plurality of S/Pconverting means, is supplied, to apply 8B/10B converting processing toeach of the first word string data of n channels by a firstpredetermined bit number at a time, and to form second work string dataof n channels, each of which has a predetermined word bit number, datamultiplexing means which multiplexes the second word string data of nchannels which is obtained from the plurality of 8B/10B convertingmeans, to form multiplex word string data, multiple channel data formingmeans which takes out the multiplex word string data which is obtainedfrom the data multiplexing means, by a second predetermined bit numberat a time, to form bit string data of m channels (m is an integer whichis larger than n, same in what follows), each of which has apredetermine bit rate, data multiplexing and P/S converting means whichmultiplexes bit string data of m channels, which is obtained from themultiple channel data forming means and also applies parallel/serialconversion (P/S conversion) thereto, to form bit string data in which adata rate is 10 Gb/s or more, as a second serial/digital video signal,and data sending away means which sends away to transmit bit string datawhich is obtained from the data multiplexing and parallel/serialconverting means and in which a data rate is 10 Gb/s or more.

In particular, a data transmitting apparatus according to an embodimentof the invention is configured to include multiple channel serialdigital video signal forming means to which a specific parallel digitalvideo signal, which forms word string data configured with a specificframe rate, a quantifying bit number, and parallel arrangement of greencolor, blue color and red color original color signal data series, issupplied, to convert the specific parallel digital video signal intofirst serial digital video signals of n channels forming bit stringdata, each of which has a bit rate defined by a standard, and the firstserial digital video signals of n channels, which are obtained from themultiple channel serial digital video signal forming means, are suppliedto the plurality of S/P converting means.

In addition, a data transmitting apparatus according to an embodiment ofthe invention is configured to include n pieces of serial digital videosignal forming means, to which third serial digital video signals of pchannels (p is an integer of 2 or more, same in what follows) formingbit string data, each of which has a lower bit rate defined by astandard than a bit rate of the first serial digital video signal, aresupplied, to form a first serial digital video signal of 1 channel basedon the third serial digital signals of p channels, and the first serialdigital video signals of n channels, which are obtained from the npieces of serial digital video signal forming means, respectively, aresupplied to the plurality of S/P converting means.

Further, a data transmitting apparatus according to an embodiment .ofthe invention is configured to include q pieces (q is an integer whichis smaller than n, same in what follows) of serial digital video signalforming means to which third serial digital video signals of p channels(p is an integer of 2 or more) forming bit string data, each of whichhas a lower bit rate defined by a standard than a bit rate of the firstserial digital video signal, to form a first serial digital video signalof 1 channel based on the third serial digital video signals of pchannels, and the first serial digital video signals of q channels,which are obtained from the q pieces of serial digital video formingmeans, respectively, and the first serial digital video signals of (n−q)channels are supplied to the plurality of S/P converting means as firstserial digital video signals of n channels.

On one hand, a data receiving apparatus according to an embodiment ofthe invention is configured to include data receiving means whichreceives bit string data in which a bit rate is 10 Gb/s or more, as afirst serial digital video signal, S/P converting and multiple channeldata forming means which applies S/P conversion to bit string data whichis obtained from the data receiving means and in which a bit rate is 10Gb/s or more, to form bit string data of m channels, each of which had apredetermined bit rate, data multiplexing means which multiplexes bitstring data of m channels which is obtained from the S/P converting andmultiple channel data forming means, to form multiplex word string data,data separating means which takes out the multiplex word string datawhich is obtained from the data multiplexing means, by a firstpredetermined bit number at a time, to obtain first word string data ofn channel, each of which has a predetermined word bit number, aplurality of 8B/10B decoding converting means to which first word stringdata of n channel, which is obtained from the data separating means, issupplied, to apply 10B/8B converting processing (8B/10B decodingconverting) to each of the first word string data of n channels by asecond predetermined bit number at a time, and to form second wordstring data of n channels, each of which is made as a parallel digitalvideo signal having a line portion data structure defined by a standard,and a plurality of P/S converting means to which second word string dataof n channels, which is obtained from the plurality of 8B/10B decodingconverting means, is supplied, to obtain second serial digital videosignals of n channels forming bit string data, each of which has a bitrate defined by a standard.

In particular, a data receiving apparatus according to an embodiment ofthe invention is configured to include specific parallel digital videosignal forming means to which second serial digital video signals of nchannels, forming bit string data which is obtained from the pluralityof P/S converting means and having bit string data each of which has abit rate defined by a standard, are supplied, to convert the secondserial digital video signals of n channels into a specific paralleldigital video signal, which forms word string data configured with aspecific frame rate, a quantifying bit number, and parallel arrangementof green color, blue color and red color original color signal dataseries, and to send it out.

In addition, a data receiving apparatus according to an embodiment ofthe invention is configured to include n pieces of parallel digitalvideo signal forming means to which second serial digital video signalsof n channels, forming bit string data which is obtained from theplurality of P/S converting means and each of which has a bit ratedefined by a standard, are supplied, respectively, and each of whichconverts one of the second serial digital video signals of n channelsinto third serial digital video signals of p channels forming bit stringdata which had a lower bit rate defined by a standard than a bit rate ofthe second serial digital video signal, and sends it out.

Further, a data receiving apparatus according to an embodiment of theinvention is configured to include q pieces of parallel digital videosignal forming means to which q pieces out of second serial digitalvideo signals of n channels forming bit string data which is obtainedfrom the plurality of P/S converting means and each of which has a bitrate defined by a standard, are supplied, respectively, and each ofwhich converts one of the second serial digital video signals of nchannels into third serial digital video signals of p channels formingbit string data which had a lower bit rate defined by a standard than abit rate of the second serial digital video signal, and sends it out.

In a data transmitting apparatus according to an embodiment of theinvention, first serial digital video signals of n channels, forming bitstring data which are, for example, HD-SDI signals of 5 channels, eachof which has a bit rate defined by a standard, for example a bit rate of1.485 Gb/s, are converted into first ward string data of n channelsforming parallel digital video, signals, each of which has a lineportion data structure defined by a standard, after S/P conversion isapplied to each of them by a plurality of S/P converting means. Then,8B/10B converting is applied to each of the first word string data of nchannels, by a first predetermined bit number at a time, for example, by40 bits at a time, to form second word string data of n channels, eachof which was made to have a predetermined word'bit number, for example,a word bit number of 50 bits, and after that, second word string data ofn channels is multiplexed, to form multiplex word string data.Subsequently, the multiplex word string data is taken out by a secondpredetermined bit number at a time, for example, by 250 bits at a time,to form bit string data of m channel, for example of 16 channel, each ofwhich was made to have a predetermined bit rate, for example a bit rateof 668.25 Mb/s, and further, the bit string data of these m channels ismultiplexed and also P/S converted, and bit string data in which a bitrate is 10 Gb/s or more, for example 10.692 Gb/s is formed as a secondserial digital video signal. Then, this bit string data in which a bitrate is 10 Gb/s or more, for example 10.692 Gb/s is sent away so as tobe transmitted.

In particular, in a data transmitting apparatus according to anembodiment of the invention, specific parallel digital video signals,which are to be, for example, next generation camera signals, HD supermotion signals or 4 k×2 k signals and which form word string dataconfigured with a specific frame rate, a quantifying bit number, andparallel arrangement of green color, blue color and red color originalcolor signal data series, is converted by multiple channel serialdigital video signal forming means into first serial digital videosignals of n channels forming bit string data which is, for example,HD-SDI signals of n channels and each of which has a bit rate defined bya standard, and they are supplied to a plurality of S/P convertingmeans. Then, the first serial digital video signals of n channels, whichwere supplied to the plurality of S/P converting means, are convertedinto second serial digital video signals forming bit string data inwhich a bit rate is 10 Gb/s or more, for example, 10.692 Gb/s, and sentaway so as to be transmitted.

In addition, in a data transmitting apparatus according to an embodimentof the invention, third serial digital video signals of p channels,forming bit string data, each of which has a lower bit rate defined by astandard than a bit rate of the first serial digital video signals whichare, for example, SD signals of 4 channels, are supplied to each of npieces, which are, for example, 5 pieces, of serial digital video signalforming means. In each of these n pieces, which are, for example, 5pieces, of serial digital video forming means, formed is a first serialdigital video signal of 1 channel based on third serial digital signalsof p: channels which are, for example, SD signals of 4 channels. As aresult of that, the first serial digital video signals of n channels,for example, 5 channels, which are obtained from the n pieces of serialdigital video signal forming means, are supplied to a plurality of S/Pconverting means. Then, the first serial digital video signals of nchannels, which were supplied to the plurality of S/P converting means,are converted into second serial digital video signals forming bitstring data in which a bit rate is 10 Gb/s or more, for example, 10.692Gb/s. and sent away so as to be transmitted.

Further, in a data transmitting apparatus according to an embodiment ofthe invention, third serial digital video signals of p channels formingbit string data, each of which has a lower bit rate defined by astandard than a bit rate of the first serial digital video signals whichare, for example, SD signals of 4 channels, are supplied to each of qpieces, which are, for example, 4 pieces or less, of serial digitalvideo forming means. In each of these q pieces, which are, for example,4 pieces or less, of serial digital video signal forming means, formedis a first serial digital video signal of 1 channel based on thirdserial digital video signals of p channels, which are, for example, SDsignals of 4 channels. As a result of that, first serial digital videosignals of q channels, for example, 4 channels or less, which areobtained from the q pieces of serial digital video forming means, andfirst serial digital video signals of (n−q) channels, for example, 1channel or more, are supplied to a plurality of S/P converting means asfirst serial digital video signals of n channels in total. Then, thefirst serial digital video signals of n channels, which were supplied tothe plurality of S/P converting means, are converted into second serialdigital video signals forming bit string data in which a bit rate is 10Gb/s or more, for example, 10.692 Gb/s, and sent away so as to betransmitted.

On one hand, in a data receiving apparatus according to an embodiment ofthe invention, bit string data in which a bit rate is 10 Gb/s or more,for example, 10.692 Gb/s, is received as a first serial digital videosignal, and S/P conversion is applied to that bit string data in which abit rate is 10 Gb/s or more, for example, 10.692 Gb/s, to form bitstring data of m channels, each of which has a predetermined bit rate,for example, a bit rate of 668.25 Mb/s, and after that, bit string dataof m channels is multiplexed to form multiplex word string data. Then,the multiplex word string data is taken out by a first predetermined bitnumber at a time, for example, by 250 bits at a time, to form first wordstring data of n channel, for example of 5 channel, each of which has apredetermined word bit number, for example, a word bit number of 50bits. Then, 8B/10B decoding conversion is applied to each of the firstword string data of 5 channels, by a second predetermined bit number ata time, for example, by 50 bits at a time, to form second word stringdata of n channels, which is used as parallel digital video signals,each of which has a line portion data structure defined by a standard.Subsequently, the second word string data of n channels is P/S convertedby a plurality of P/S converting means, respectively, and by that means,obtained are second serial digital video signals of n channels formingbit string data which is, for example, HD-SDI signals of 5 channels,each of which was made to have a bit rate defined by a standard, forexample, a bit rate of 1.485 Gb·s.

In particular, in a data receiving apparatus according to an embodimentof the invention, second serial digital video signals of n channels,which are obtained from a plurality of P/S converting means, areconverted by a specific parallel digital video forming means intospecific parallel digital video signals which are to be, for example,next generation camera signals, HD super motion signals or 4 k×2 ksignals and which form word string data configured with a specific framerate, a quantifying bit number, and parallel arrangement of green color,blue color and red color original color signal data series, and drawnon.

In addition, in a data receiving apparatus according to an embodiment ofthe invention, each of second serial digital video signals of nchannels, which are obtained from a plurality of P/S converting means,is converted by each of n pieces of parallel digital video signalforming means into third serial digital video signals of p channelsforming bit string data which are, for example, SD signals of 4channels, and each of which has a lower bit rate defined by a standardthan a bit rate of the second serial digital video signal, and sent awayas third serial digital video signals of n×p channels.

Further, in a data receiving apparatus according to an embodiment of theinvention, each of q pieces, which are, for example, 4 pieces or less,out of second serial digital video signals of n channels which areobtained from a plurality of P/S converting means, is converted by eachof q pieces of parallel digital video signal forming means into thirdserial digital video signals of p channels forming bit string data whichis for example, SD signals of 4 channels and each of which has a lowerbit rate defined by a standard than a bit rate of the second serialdigital video signal, and sent away as third serial digital videosignals of q×p channels, and (n−q) pieces, which are, for example, 1piece or more, out of the second serial digital video signals of nchannels which are obtained from the plurality of P/S converting means,are sent away together with third serial digital video signals of q×pchannels.

According to a data transmitting apparatus described in an embodiment ofthe invention, multiplexing processing is applied to HD-SDI signals of nchannels, for example, 5 channels as first serial digital video signalsof n channels forming bit string data each of which has a bit ratedefined by a standard, and after that, it can be converted into secondserial digital video signals forming bit string data in which a bit rateis 10 Gb/s or more, for example, 10.692 Gb/s, and sent away so as totransmit it. Therefore, it becomes possible to effectively carry outserial transmission as to HD-SDI signals which are made to have astandardized bit rate which is 1.485 Gb/s under such a state thatmultiplexing processing was applied to these multiple channels.

Then, according to a data transmitting apparatus described in anembodiment of the invention, next generation camera signals, HD supermotion signals or 4 k×2 k signals are converted into first serialdigital video signals of n channels forming bit string data which is,for example, HD-SDI signals of n channels, and each of which has a bitrate defined by a standard, as specific parallel digital video signalsforming word string data which was configured with a specific framerate, a quantifying bit number, and parallel arrangement of green color,blue color and red color original color signal data series, and further,after multiplexing processing was applied to them, they can be convertedinto second serial digital video signals forming bit string data inwhich a bit rate is 10 Gb/s or more, for example, 10.692 Gb/s, and sentaway so as to transmit it. Therefore, it becomes possible to realizeserial transmission as to each of next generation camera signals, HDsuper motion signals, 4 K×2 k signals etc. in the form which isavailable for practical use.

In addition, according to a data transmitting apparatus described in anembodiment of the invention, SD signals of p×n channels, for example, 20channels, are divided into n groups which are, for example, 5 groups, byn channels at a time, for example, by 4 channels at a time, and n groupsof SD signals with p channels for each are supplied to each of n piecesof serial digital video signal forming means, to obtain, for example,HD-SDI signals based on SD signals of p channels from each serialdigital video signal forming means, and thereby, SD signals of p×nchannels are converted into first serial digital video signals of nchannels, which are HD-SDI signals of n channels, and further, aftermultiplexing processing was applied to them, they can be converted intosecond serial digital video signals forming bit string data in which abit rate is 10 Gb/s or more, for example, 10.692 Gb/s, and sent away soas to transmit it. Therefore, it becomes possible to realize serialtransmission under such a state that multiplexing processing as to SDsignals of multiple channels was carried out, as one which is availablefor practical use.

Further, according to a data transmitting apparatus described in anembodiment of the invention, SD signals of p×q channels, for example, 16channels, are divided into q groups, for example, 4 groups or less, by pchannels at a time, for example, by 4 channels at a time, and q groupsof SD signals with p channels for each are supplied to each of q piecesof serial digital video signal forming means, to obtain, for example,HD-SDI signals based on SD signals of p channels from each serialdigital video signal forming means, and thereby, SD signals of p×qchannels are converted into first serial digital video signals of qchannels, which are HD-SDI signals of q channels, and further, aftermultiplexing processing was applied to them together with separatelyprepared HD-SDI signals of (n−q) channels, for example, 1 channel ormore, they can be converted into second serial digital video signalsforming bit string data in which a bit rate is 10 Gb/s or more, forexample, 10.692 Gb/s, and sent away so as to transmit it. Therefore, itbecomes possible to realize serial transmission under such a state thatmultiplexing processing as to SD signals and HD-SDI signals of multiplechannels was carried out, as one which is available for practical use.

On one hand, according to a data receiving apparatus described in anembodiment of the invention, bit string data, in which a bit rate is 10Gb/s or more, for example, 10.692 Gb/s, is received as first serialdigital video signals, and in case that the bit string data, in which abit rate is 10 Gb/s or more, for example, 10.692 Gb/s, was formed aftermultiplexing processing, as to first serial digital video signals of nchannels forming bit string data each of which has a bit rate defined bya standard, was carried out, it is possible to reproduce second serialdigital video signals of n channels, forming bit string data which is,for example, HD-SDI signals of n channels, for example, 5 channels andeach of which has a bit rate defined by a standard, from the receivedbit string data in which a bit rate is 10 Gb/s or more, for example,10.692 Gb/s. Therefore, on the occasion of serial transfer as to HD-SDIsignals having a standardized bit rate, for example, 1.485 Gb/s undersuch a state that multiple channels thereof were multiplexed, it becomespossible to configure that receiving apparatus.

Then, according to a data receiving apparatus described an embodiment ofthe invention, bit string data, in which a bit rate is 10 Gb/s or more,for example, 10.692 Gb/s, is received as first serial digital videosignals, and in case that the bit string data, in which a bit rate is 10Gb/s or more, for example, 10.692 Gb/s, was formed on the basis ofspecific parallel digital video signals forming word string data whichwas configured with a specific frame rate, a quantifying bit number, andparallel arrangement of green color, blue color and red color originalcolor signal data series, it is possible to reproduce specific paralleldigital video signals which are to be any one of, for example, nextgeneration camera signals, HD super motion signals, 4 k×2 k signals etc.and which form word string data configured with a specific frame rate, aquantifying bit number, and parallel arrangement of green color, bluecolor and red color original color signal data series, from the receivedbit string data in which a bit rate is 10 Gb/s or more, for example,10.692 Gb/s. Therefore, on the occasion of serial transfer as to any oneof next generation camera signals, HD super motion signals, 4 k×2 ksignals etc., it becomes possible to configure that receiving apparatus.

In addition, according to a data receiving apparatus described in anembodiment of the invention, bit string data, in which a bit rate is 10Gb/s or more, for example, 10.692 Gb/s, is received as first serialdigital video signals, and in case that the bit string data, in which abit rate is 10 Gb/s or more, for example, 10.692 Gb/s, was formed on thebasis of third serial digital video signals of n×p channels forming bitstring data each of which has a lower bit rate defined by a standardthan a bit rate of second serial digital video signals, it is possibleto reproduce third serial digital video signals of n×p channels, formingbit string data which is, for example, SD signals of 20 channels andeach of which has a lower bit rate defined by a standard than a bit rateof the second serial digital video signals, from the received bit stringdata in which a bit rate is 10 Gb/s or more, for example, 10.692 Gb/s.Therefore, on the occasion of serial transfer as to SD signals ofmultiple channels under such a state that they were multiplexed, itbecomes possible to configure that receiving apparatus.

Further, according to a data receiving apparatus described in anembodiment of the invention, bit string data, in which a bit rate is 10Gb/s or more, for example, 10.692 Gb/s, is received as first serialdigital video signals, and in case that the bit string data, in which abit rate is 10 Gb/s or more, for example, 10.692 Gb/s, was formed on thebasis of third serial digital video signals of q×p channels and secondserial digital video signals of (n−q) channels forming bit string dataeach of which has a lower bit rate defined by a standard than a bit rateof second serial digital video signals, it is possible to reproducethird serial digital video signals of q×p channels and second serialdigital video signals of (n−q) channels, forming bit string data whichis, for example, SD signals of 16 channels or less and HD-SDI signals of1 channel or more, and each of which has a lower bit rate defined by astandard than a bit rate of the second serial digital video signals,from the received bit string data in which a bit rate is 10 Gb/s ormore, for example, 10.692 Gb/s. Therefore, on the occasion of serialtransfer as to SD signals and HD-SDI signals of multiple channels undersuch a state that they were mixed and multiplexed, it becomes possibleto configure that receiving apparatus.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention, together with further advantages thereof, may best beunder stood by reference to the following description taken inconjunction with the accompanying drawings in which:

FIG. 1 is a block diagram which shows one example of a data transmittingapparatus described in an embodiment of the invention;

FIG. 2 is a block diagram which shows a concrete configuration exampleof a parallel data forming section in the example shown in FIG. 1;

FIG. 3 is a conceptual diagram which shows a data format to be used foran operational explanation of the example shown in FIG. 1;

FIG. 4 is a conceptual diagram which shows a data format to be used foran operational explanation of the example shown in FIG. 1;

FIG. 5 is a conceptual diagram which shows a data format to be used foran operational explanation of the example shown in FIG. 1;

FIG. 6 is a conceptual diagram which shows a data format to be used foran operational explanation of the example shown in FIG. 1;

FIG. 7 is a conceptual diagram which shows a data format to be used foran operational explanation of the example shown in FIG. 1;

FIG. 8 is a block diagram which shows one example of a data transmittingapparatus described in an embodiment of the invention;

FIG. 9 is a block diagram which shows one example of a data transmittingapparatus described in an embodiment of the invention;

FIG. 10 is a block diagram which shows one example of a datatransmitting apparatus described in an embodiment of the invention;

FIG. 11 is a block diagram which shows one example of a datatransmitting apparatus described in an embodiment of the invention;

FIG. 12 is a block diagram which shows one example of a datatransmitting apparatus described in an embodiment of the invention;

FIG. 13 is a block diagram which shows one example of a data receivingapparatus described in an embodiment of the invention;

FIG. 14 is a block diagram which shows a concrete configuration exampleof a serial data forming section in the example shown in FIG. 13;

FIG. 15 is a block diagram which shows one example of a data receivingapparatus described in an embodiment of the invention;

FIG. 16 is a block diagram which shows one example of a data receivingapparatus described in an embodiment of the invention;

FIG. 17 is a block diagram which shows one example of a data receivingapparatus described in an embodiment of the invention;

FIG. 18 is a block diagram which shows a portion of one example of adata receiving apparatus described in an embodiment of the invention;and

FIG. 19 is a block diagram which shows a portion of one example of adata receiving apparatus described in an embodiment of the invention.

DETAILED DESCRIPTION OF THE EMBODIMENTS

Best modes for carrying out the invention will be explained withembodiments which will be described below.

Embodiment 1

FIG. 1 shows one example (embodiment 1) of a data transmitting apparatusof the invention.

In the example shown in FIG. 1, i.e., in the embodiment 1, HD-SDIsignals of n channels, DHS1, DHS2, . . . , DHSn, in each of which a bitrate is standardized 1.485 Gb/s, are supplied to a parallel data formingsection 11, as serial digital video signals of n channels forming bitstring data each of which has a bit rate defined by a standard. Each ofthe HD-SDI signals of n channels, DHS1, DHS2, . . . , DHSn, in each ofwhich a bit rate is standardized 1.485 Gb/s, are to be obtained as aresult of serialization of HD signals in which, for example, a framerate is set to 30 Hz, 25 Hz or 24 Hz, and an effective line number ineach frame and an effective word number in each line are set to 1080lines and 1920 words, and a word bit number (quantifying bit number) isset to 10 bits, and a data format is set to a Y, C_(B)/C_(R) format.Then, the n channels are set to, for example, 5 channels or 6 channels,and an operation mode 1 is to be of such a state that HD-SDI signals of5 channels DHS1 to DHS5 are supplied to the parallel data formingsection 11, and an operation mode 2 is to be of such a state that HD-SDIsignals of 6 channels, DHS1 to DHS6 are supplied to the parallel dataforming section 11.

The parallel data forming section 11 incorporates a data processingsection PD1 to the HD-SDI signal DHS1, a data processing section PD2 tothe HD-SDI signal DHS2, . . . , a data processing section PDn to theHD-SDI signal DHSn.

In the data processing section PD1, S/P conversion is applied to theHD-SDI signal DHS1 which is supplied thereto, in a S/P convertingsection 12, and it is converted into, for example, word string data Dh1forming HD signals which are parallel digital video signals having aline portion data structure, as shown in FIG. 3. The line portion datastructure shown in FIG. 3 is composed of a Y data series including avideo data portion and a line blanking portion which represent luminancesignal information in a video signal, and a C_(B)/C_(R) data seriesincluding a video data portion and a line blanking portion whichrepresent color difference signal information in the video signal. Ineach of the Y data series and the C_(B)/C_(R) data series, a word bitnumber, which is a bit number of each word data configuring it, is setto 10 bits, and the Y data series and the C_(B)/C_(R) data series arearranged in parallel under such a state that they were synchronized witheach other, and therefore, as a whole, 20 bit word string data isformed. In addition, a word rate is set to 74.25 MB/s or 74.25/1.001MB/s (in this application, both of them are referred to as 74.25 MB/s).

In each line blanking portion of each of the Y data series and theC_(B)/C_(R) data series, timing reference code data SAV (Start of ActiveVideo), which is to be located immediately before each video dataportion and is composed of 4 words, is disposed, and timing referencecode data EAV (End of Active Video), which is to be located immediatelyafter each video data portion and is composed of 4 words, is disposed. 4words, which are forming each of the timing reference code data SAV andEAV, are to be represented as 3FF, 000, 000, XYZ in hexadecimalexpression. Each of 3FF and 000 is “prohibited code” which is not usedas a word in a video data portion, and a combination of 3FF, 000, 000,XYZ does not appear in a video data portion.

In addition, between the timing reference code data SAV and the timingreference code data EAV in each line blanking portion of each of the Ydata series and the C_(B)/C_(R) data series, auxiliary data is disposedin addition to other data. Then, the auxiliary data, which is disposedin each line blanking portion of the Y data series, is to arbitrarilyinclude identification data of 4 word configuration: Payload ID, whichrepresents information as to video data of the HD signal.

Meanwhile, a line portion data structure shown in FIG. 3 is of such acase that a frame rate is set to 30 Hz. Therefore, in each of the Y dataseries and the C_(B)/C_(R) data series, 1 line period portion iscomposed of 2200 words, and a line blanking portion in it is composed of280 words, and a video data portion is composed of 1920 words.

The word string data Dh1, which is obtained from the S/P convertingsection 12, is supplied to a bit/word synchronization setup section 13.In the bit/word synchronization setup section 13, detection of timingreference code data SAV and EAV, which are contained in the word stringdata Dh1, is carried out, and on the basis of detection results of them,bit synchronization and word synchronization are established, andfurther, detection of a frame rate as to the word string data Dh1 isalso carried out.

The word string data Dh1, which passed through the bit/wordsynchronization setup section 13, is written in a FIFO memory section14, by 20 bits at a time, with a writing clock signal QW1 in whichfrequency is set to 74.25 MHz. Then, the word string data Dh1, which waswritten in the FIFO memory section 14, is read out by 40 bits at a time,with a reading clock signal QR1 in which frequency is set to 74.25/2MHz=37.125 MHz, and supplied to a K28.5/P.ID inserting section 15 asword string data Dd1.

In the K28.5/P.ID inserting section 15, as shown in FIG. 4, 40 bits intotal, which are 4 words (3FF(C), 3FF(Y), 000(C), 000(Y)) out of 8 words(3FF(C), 3FF(Y), 000(C), 000(Y), 000(C) 000(Y), XYZ(C), XYZ(Y): (Y)represents a word in the Y data series, and (C) represents a word in theC_(B)/C_(R) data series) which form timing reference code SAV or EAV ineach line blanking portion of the word string data Dd1, are replaced by2 pieces of 8 bit word data DK and 3 pieces of 8 bit word data DP, andthereby, data inserting processing, in which the 8 bit word data DK andDP are inserted in the word string data Dd1, is carried out.

The 2 pieces of 8 bit word data DK is one which is converted into 10 bitword data called by a code name of “K28.5”, which is not used as worddata representing video signal information (8 bit word data:HGFEDCBA=10111100), when 8B/10B converting processing is applied to eachof them. In addition, the 3 pieces of 8 bit word data DP is 3 pieces of10 bit word data which correspond to 3 words from first one throughthird one out of 4 words configuring identification data: Payload IDwhich is included in the word string data Dh1 as auxiliary data and onewhich is converted into data functioning as identification data: PayloadID, when 8B/10B converting processing is applied to them.

From the K28.5/P.ID inserting section 15, word string data Dd1, to whichinserting processing as to the 2 pieces of 8 bit word data DK and the 3pieces of 8 bit word data DP was applied, is sent away by 40 bits at atime, and supplied to an 8B/10B converting section 16. In the 8B/10Bconverting section 16, as to the word string data Dd1, 8B/10Bconversion, in which 40 bits thereof are converted into 50 bitssequentially, is carried out, and word string data De1 is formed. Then,from the 8B/10B converting section 16, the word string data De1 is sentaway by 50 bits at a time, and it is used as output data from the dataprocessing section PD1.

In addition, in the data processing section PD2, S/P conversion isapplied to the HD-SDI signal DHS2, which is supplied thereto, in a S/Pconverting section 17, and it is converted into word string data Dh2forming HD signals which are parallel digital video signals having theabove-described line portion data structure as shown, for example, inthe FIG. 3. Word string data Dh2, which is obtained from the S/Pconverting section 17, is supplied to a bit/word synchronizing setupsection 18. In the bit/word synchronizing setup section 18, detection oftiming reference code data SAV and EAV, which are included in the wordstring data Dh2, is carried out, and on the basis of detection resultsof them, bit synchronization and word synchronization are established.

The word string data Dh2, which passed through the bit/wordsynchronization setup section 18, is written in a FIFO memory section19, by 20 bits at a time, with a writing clock signal QW1 in whichfrequency is set to 74.25 MHz. Then, the word string data Dh2, which waswritten in the FIFO memory section 19, is read out by 40 bits at a time,with a reading clock signal QR1 in which frequency is set to 74.25/2MHz=37.125 MHz, and supplied to an 8B/10B converting section 20 as wordstring data Dd2. In the 8B/10B converting section 20, 8B/10B conversionas to the word string data Dd2, in which 40 bits thereof are convertedinto 50 bits sequentially, is carried out, and word string data De2 isformed. Then, from the 8B/10B converting section 20, the word stringdata De2 is sent away by 50 bits at a time, and it is used as outputdata from the data processing section PD2.

Each of the data processing sections PD3 to PDn is also the same as thedata processing section PD2, and in the data processing sections PD3 toPDn, the same processing as processing which is carried out to theHD-SDI signal DHS2 to be supplied to the data processing section PD2 iscarried out to HD-SDI signals DHS3 to DHSn which are supplied to them,respectively, and from the data processing sections PD3 to PDn, wordstring data De3 to Den, each of which is sent away by 50 bits at a time,are obtained as output data.

Under the suchlike circumstances, in case that the HD-SDI signals DHS1to DHSn, which are supplied to the data processing sections PD1 to PDnrespectively, are ones based on each of HD signals of n channelsincluding at least two HD signals with different frame rates each other,each of word string data Dh1 to Dhn, which are formed in the dataprocessing sections PD1 to PDn respectively, is to be one having a lineportion data structure based on the word string data Dh1 which is formedin the data processing section PD1. That is, each of the word stringdata Dh2 to Dhn is to be one taking a line portion data structure whichis formed along a line portion data structure of the word string dataDh1.

For example, in case that the HD-SDI signal DHS1, which is supplied tothe data processing section PD1, is one based on an HD signal in which aframe rate is set to 30 Hz, and the HD-SDI signal DHS2, which issupplied to the data processing section PD2, is one based on an HDsignal in which a frame rate is set to 24 Hz, the word string data Dh1,which is formed in the data processing section PD1, is made to have aline portion data structure shown in FIG. 3 as described above, and asshown in A of FIG. 5, 1 line period portion is to be configured with2200 words, in tune with 1 line period portion of an original HD signalof the HD-SDI signal DHS1, and in addition to that, the word string dataDh2, which is formed in the data processing section PD2, is also to beconfigured so as to take a line portion data structure in which 1 lineportion is configured with 2200 words, along the line of the word stringdata Dh1 which is formed in the data processing section PD1.

On such occasion, 1 line period portion of an HD signal in which a framerate is set to 30 Hz is configured with 2200 words, whereas 1 lineperiod portion of an HD signal in which a frame rate is set to 24 Hz isconfigure with 2750 words. Therefore, as described above, when the wordstring data Dh2, which is formed in the data processing section PD2, isconfigured to take a line portion data structure in which 1 line periodportion is configured with 2200 words, along the line of the word stringdata Dh1 which is formed in the data processing section PD1, 1 lineperiod portion can not be accommodated in 1 line period portion (2750words) of an HD signal which became a basis of the HD-SDI signal DHS2supplied to the data processing section PD2 and in which a frame rate isset to 24 Hz. Consequently, at this time, the word string data Dh2,which is formed in the data processing section PD2, is to be of such astructure that 4 line period portions (4×2750=11000 words) of an HDsignal, which became a basis of the HD-SDI signal DHS2 supplied to thedata processing section PD2, are accommodated in 5 line period portions(5×2200.11000 words).

Word string data De1 to Den, which are obtained respectively from thedata processing sections PD1 to PDn incorporated in the parallel dataforming section 11 as output data, are sent away as word string data ofn channels from the parallel data forming section 11. On such occasion,a mode selection controlling section 21, which was disposed in theparallel data forming section 11, detects identification data: PayloadID which is included in word string data Dh1 to Dhn formed in the dataprocessing sections PD1 to Pdn, and detects an operation mode at thattime, for example, an operation mode 1 in which the HD-SDI signals DHS1to DHS5 of 5 channels are supplied to the parallel data forming section11, or an operation mode 2 in which the HD-SDI signals DHS1 to DHS6 of 6channels are supplied to the parallel data forming section 11, and sendsaway a mode selection control signal CMT for having an entirety of theexample shown in FIG. 1 taken a data processing mode which correspondsto the detected operation mode. As a result of that, the example shownin FIG. 1 is to take a data processing mode which fits in with anoperation mode at that time, across its entirety.

The word string data De1 to Den of n channels, which are obtained fromthe parallel data forming section 11, are supplied to a datamultiplexing section 22. In the data multiplexing section 22, the wordstring data De1 to Den are multiplexed by a method of word multiplexing,under such a state that each of them was synchronized each other, andthereby, multiplex word string data Dm is formed.

The multiplex word string data Dm, which is formed in the datamultiplexing section 22, is made as 10 bit word string data, a lineportion data configuration of which is configured by, for example, aline blanking portion which is obtained by line blanking portions ineach of the word string data De1 to Den being multiplexed, and a videodata portion which is obtained by video data portions in each of theword string data De1 to Den being multiplexed. Then, at the front ofmultiplexed timing reference code data SAV or EAV in a line blankingportion of the multiplex word string data Dm which is made as thesuchlike 10 bit word string data, disposed are K28.5 of 2 bytes andidentification data: Payload ID of 3 bytes, based on 2 pieces of 8 bitword data DK and 3 pieces of 8 bit word data DP, which were replaced andinserted into the word string data Dd1 in the data processing sectionPD1 which was incorporated in the parallel data forming section 11.

The multiplex word string data Dm, which is obtained from the datamultiplexing section 22, is written in a memory section 23, by 50×n bitsthereof at a time, with a writing clock signal QW2 in which frequency isset to 74.25/2 MHz=37.125 MHz. Then, the multiplex word string data Dm,which was written in the memory section 23, is read out from the memorysection 23, by 50×n bits at a time, with a reading clock signal QR2 inwhich frequency is set to 83.53125/2 MHz≈41.766 MHz, and supplied to adata length converting section 24, as word string data Do.

In the data length converting section 24, data length convertingprocessing, in which 50×n bits thereof are changed to 256 bitssequentially, is applied to the word string data Do, and word stringdata Dp is formed. At this time, as to the word string data Dp,additional data, which is, for example, used for speed adjustment, isadded thereto, according to need, and when the additional data is added,the additional data is to include 10 bit word data called by a code nameof “K28.3” of 2 bytes, which is not used as word data representing videosignal information, at its front portion.

The suchlike word string data Dp has a line portion data structure shownin A of FIG. 6, when each of for example, HD-SDI signals DHS1 to DHS5 isto have a frame rate of 30 Hz, under such a basis that HD-SDI signalsDHS1 to DHS5 of 5 channels are supplied to the parallel data formingsection 11, and to have a line portion data structure shown in B of FIG.6, when each of the HD-SDI signals DHS1 to DHS5 has a frame rate of 25Hz, and further, to have a line portion data structure shown in C ofFIG. 6, when each of the HD-SDI signals DHS1 to DHS5 has a frame rate of24 Hz. Each of these line portion data structures, which are shown in A,B and C of FIG. 6 respectively, has an additional data portion in whichadditional data was disposed, as one which comes next to a video dataportion, and “K28.3” of 2 bytes is inserted in the front of theadditional data portion.

In addition, the word string data Dp is to have a line portion datastructure shown in A of FIG. 7, when each of the HD-SDI signals DHS1 toDHS6 has, for example, a frame rate of 30 Hz, under such a basis thatHD-SDI signals DHS1 to DHS6 of 6 channels are supplied to the paralleldata forming section 11, and to have a line portion data structure shownin B of FIG. 7, when each of the HD-SDI signals DHS1 to DHSn has a framerate of 25 Hz, and further, to have a line portion data structure shownin C of FIG. 7, when each of the HD-SDI signals DHS1 to DHSn has a framerate of 24 Hz. Each of these line portion data structures, which areshown in A, B and C of FIG. 7 respectively, does not have an additionaldata portion in which additional data was disposed.

The word string data Dp, which is obtained from the data lengthconverting section 24, is written in a memory section 25, by 256 bitsthereof at a time, with a writing clock signal QW3 in which frequency isset to 83.53125/2 MHz≈41.766 MHz. Then, the word string data Dp, whichwas written in the memory section 25, is read out from the memorysection 25, by 64 bits at a time, with a reading clock signal QR3 inwhich frequency is set to 83.53125×2 MHz=167.0625 MHz, and supplied to amultiple channel data forming section 26, as word string data Dq.

In the multiple channel data forming section 26, on the basis of theword string data Dq which is supplied by 64 bits at a time, with a cycleof 1/167.0625 MHz, m channels in each of which a bit rate is set to668/25 Mb/s, for example, bit string data DSX of 16 channels, areformed. By that means, the bit string data DSX of 16 channels, which isobtained from the multiple channel data forming section 26, is suppliedto a data multiplexing and P/S converting section 27.

In the data multiplexing and P/S converting section 27, the bit stringdata DSX of 16 channels is multiplexed, and P/S conversion is applied toparallel data which is obtained by that means, to form bit string dataDTG in which a bit rate is set to 10 Gb/s or more, for example, 668.25Mb/s×16=10.692 Gb/s. In this manner, the bit string data DTG, which isobtained from the data multiplexing and P/S converting section 27, isone which was formed on the basis of HD-SDI signals DHS1 to DHSn of nchannels which were supplied to the parallel data forming section 11,and therefore, it is to be serial digital video signals forming bitstring data in which a bit rate is set to 10 Gb/s or more, for example,10.692 Gb/s.

Then, the bit string data DTG, which is obtained from the datamultiplexing and P/S converting section 27, is supplied to an electriclight converting section 28 which forms a data sending away section. Theelectric light converting section 28 converts the bit string data DTGinto an optical signal DL, and sends away the optical signal DL so as totransmit it through an optical signal transmission cable 29 which isformed by an optical fiber etc.

As described above, in the embodiment 1 which is one example of a datatransmitting apparatus of the invention, multiplexing processing wasapplied to HD-SDI signals DHS1 to DHSn of n channels, for example, 5channels or 6 channels, and after that, they can be converted into bitstring data DTG in which a bit rate is set to 10 Gb/s or more, forexample, 10.692 Gb/s, and sent away so as to transmit it. Therefore, itbecomes possible to effectively carry out serial transmission of HD-SDIsignals which are to have a standardized bit rate of for example, 1.485Gb/, under such a basis that multiplexing processing was applied to thatmultiple channels.

Embodiment 2

FIG. 8 shows one example (embodiment 2) of a data transmitting apparatusof the invention.

In the example shown in FIG. 8, i.e., in the embodiment 2, on an inputterminal side of a parallel data forming section 11 which is to be thesame as the parallel data forming section 11 shown in FIG. 1, a multiplechannel serial digital video signal forming section 30 is provided. Tothe multiple channel serial digital video signal forming section 30,specific parallel digital video signals DSV, which are to be any one ofnext generation camera signals, HD super motion signals, 4 k×2 k signalsetc., and which form word string data which was configured with aspecific frame rate, a quantifying bit number, and parallel arrangementof green color, blue color and red color original color signal dataseries, are supplied.

In the multiple channel serial digital video signal forming section 30,the specific parallel digital video signals DSV, which are to be any oneof next generation camera signals, HD super motion signals, 4 k×2 ksignals etc., are converted into HD-SDI signals DHS1 to DHSn of nchannels, each of which has a standardized bit rate of for example,1.485 Gb/s. For example, in case that the specific parallel digitalvideo signals DSV are the HD super motion signals, they are convertedinto HD-SDI signals DHS1 to DHS6 of 6 channels, under such a basis thatauxiliary bit, which compensates for bit shortage, is added, and inaddition, in case of the 4 k×2 k signals, they are converted into HD-SDIsignals DHS1 to DHS8 of 8 channels, under such a basis that auxiliarybit, which compensates for bit shortage, is added.

In this manner, the HD-SDI signals DHS1 to DHSn of n channels, which arebased on the specific parallel digital video signals DSV which areobtained from the multiple channel serial digital video signal formingsection 30 and are to be any one of next generation camera signals, HDsuper motions signals, 4 k×2 k signals etc., are supplied to theparallel data forming section 11. Each of these HD-SDI signals DHS1,DHS2, . . . , DHSn of n channels are to be equivalent to ones which areobtained by serialization of HD signals in which, for example, a framerate is set to 30 Hz, 25 Hz or 24 Hz, and an effective line number ineach frame and an effective word number in each line are set to 1080lines and 1920 words, and a word bit number (quantifying bit number) isset to 10 bits, and a data format is set to a Y, C_(B)/C_(R) format.Then, such a state that the HD-SDI signals DHS1 to DHSn of n channels,which are based on for example, next generation camera signals, aresupplied to the parallel data forming section 11, is defined as anoperation mode 3, and such a state that the HD-SDI signals DHS1 to DHSnof n channels, which are based on the HD super motion signals, aresupplied to the parallel data forming section 11, is defined as anoperation mode 4, and further, such a state that the HD-SDI signals DHS1to DHSn of n channels, which are based on the 4 k×2 k signals, aresupplied to the parallel data forming section 11, is defined as anoperation mode 5.

The parallel data forming section 11 shown in FIG. 8 also incorporates adata processing section PD1 to the HD-SDI signal DHS1, a data processingsection PD2 to the HD-SDI signal DHS2, . . . , a data processing sectionPDn to the HD-SDI signal DHSn, as shown in FIG. 2, in the same manner asthe parallel data forming section 11 shown in FIG. 1. In addition, amode selection controlling section 21, which was disposed in theparallel data forming section 11, detects identification data: PayloadId which is included in word string data Dh1 to Dhn formed in the dataprocessing sections PD1 to Pdn, and detects an operation mode at thattime, for example, the operation mode 3 in which the HD-SDI signals DHS1to DHSn of n channels, which are based on the next generation camerasignals, are supplied to the parallel data forming section 11, or theoperation mode 4 in which the HD-SDI signals DHS1 to DHSn of n channels,which are based on the HD super motion signals, are supplied to theparallel data forming section 11, or the operation mode 5 in which theHD-SDI signals DHS1 to DHSn of n channels, which are based on the 4 k×2k signals, are supplied to the parallel data forming section 11, andsends away a mode selection control signal CMT for having an entirety ofthe example shown in FIG. 8 taken a data processing mode whichcorresponds to the detected operation mode. As a result of that, theexample shown in FIG. 8 is to take a data processing mode which fits inwith an operation mode at that time, across its entirety.

Other portions in the embodiment 2 shown in FIG. 8 are similar tocorresponding portions in the embodiment 1 shown in FIG. 1, andtherefore, blocks and signals or data in FIG. 8, which correspond toblock and signals or data shown in FIG. 1, are described with referencenumerals and signs which are shared with FIG. 1, so that overlappedexplanations will be omitted.

In the suchlike embodiment 2 shown in FIG. 8 which is one example of adata transmitting apparatus of the invention, HD-SDI signals DHS1 toDHSn of n channels, which are based on specific parallel digital videosignals DSV, which are to be any one of next generation camera signals,HD super motion signals, 4 k×2 k signals etc., can be converted into bitstring data DTG in which a bit rate is set to 10 Gb/s or more, forexample, 10.692 Gb/s. after multiplexing processing was applied to them,and sent away so as to transmit it. Therefore, it becomes possible torealize serial transmission as to each of next generation camerasignals, HD super motion signals, 4 k×2 k signals etc., in the formwhich is available for practical use.

Embodiment 3

FIG. 9 shows one example (embodiment 3) of a data transmitting apparatusof the invention.

In the example shown in FIG. 9, i.e., in the embodiment 3, on an inputterminal side of a parallel data forming section 11 which is to be thesame as the parallel data forming section 11 shown in FIG. 1, aplurality of serial digital video signal forming sections 60-1, 60-2, .. . , 60-n of n channels, which are, for example, 5 pieces or 6 pieces,are provided. To the serial digital video signal forming section 60-1,SD signals DSD11 to DSD1 p of p channels, for example, 4 channels, ineach of which a bit rate is set to standardized 270 Mb/s, are suppliedas serial digital video signals of p channels forming bit string dataeach of which has a lower bit rate defined by a standard than a bit rateof HD-SDI signals in which a bit rate is to be set to standardized 1.485Gb/s. In the same manner, to the serial digital video signal formingsection 60-2, SD signals DSD21 to DSD2 p of p channels, for example, 4channels, in each of which a bit rate is set to standardized 270 Mb/s,are supplied as serial digital video signals of p channels forming bitstring data each of which has a lower bit rate defined by a standardthan a bit rate of HD-SDI signals in which a bit rate is to be set tostandardized 1.485 Gb/s, . . . , and to the serial digital video signalforming section 60-n, SD signals DSDn1 to DSDnp of p channels, forexample, 4 channels, in each of which a bit rate is set to standardized270 Mb/s, are supplied as serial digital video signals of p channelsforming bit string data each of which has a lower bit rate defined by astandard than a bit rate of HD-SDI signals in which a bit rate is to beset to standardized 1.485 Gb/s.

In this manner, to n pieces of the serial digital video signal formingsections 60-1, 60-2, . . . , 60-n, SD signals DSD11 to DSD1 p, DSD21 toDSD2 p, . . . , DSDn1 to DSDnp of p×n channels, for example, 20 channelsor 24 channels are supplied. Each of these SD signals DSD11 to DSD1 p,DSD21 to DSD2 p, . . . , DSDn1 to DSDnp are to be obtained as a resultof serialization of D1 signals in which, for example, a frame rate isset to 30 Hz or 25 Hz, and a line number in each frame is set to 525lines or 625 lines, and a word bit number (quantifying bit number) isset to 10 bits, and which was configured by applying word multiplexingprocessing to a Y data series and a C_(B)/C_(R) series.

Then, the serial digital video signal forming section 60-1 appliesmultiplexing processing which conforms to, for example, SMPTE 349M,i.e., SMPTE STANDARD SMPTE 349M-2001, for Television—Transport ofAlternate Source Image Formats through SMPTE 292M, which was establishedby SMPTE, to SD signals DSD11 to DSD1 p of p channels, and forms aHD-SDI signal DHS1 of 1 channel which is based on the SD signals DSD11to DSD1 p of p channels. In the same manner, the serial digital videosignal forming section 60-2 applies multiplexing processing whichconforms to, for example, SMPTE 349M which was established by SMPTE, toSD signals DSD21 to DSD2 p of p channels, and forms a HD-SDI signal DHS2of 1 channel which is based on the SD signals DSD21 to DSD2 p of pchannels, . . . , and the serial digital video signal forming section60-n applies multiplexing processing which conforms to, for example,SMPTE 349M which was established by SMPTE, to SD signals DSDn1 to DSDnpof p channels, and forms a HD-SDI signal DHSn of 1 channel which isbased on the SD signals DSDn1 to DSDnp of p channels.

As a result of that, from n pieces of the serial digital video signalforming sections 60-1, 60-2, . . . , 60-n, HD-SDI signals DHS1, DHS2, .. . , DHSn of n channels, for example, 5 channels or 6 channels areobtained, and they are supplied to the parallel data forming section 11.Each of these HD-SDI signals DHS1, DHS2, . . . , DHSn of n channels arealso to be obtained by serialization of HD signals in which, forexample, a frame rate is set to 30 Hz or 25 Hz, and an all line numberin each frame and an all sample number in each line are set to 525 linesand 4719 samples, or 625 lines and 4752 samples, respectively, and aword bit number (quantifying bit number) is set to 10 bits, and a dataformat is set to a Y, C_(B)/C_(R) format. Then, such a state that the nchannels are set to 5 channels and HD-SDI signals DHS1 to DHS5 of 5channels are supplied from the serial digital video signal formingsections 60-1, 60-2, . . . , 60-n to the parallel data forming section11 is defined as an operation mode 1, and in addition, such a state thatthe n channels are set to 6 channels and HD-SDI signals DHS1 to DHS6 of6 channels are supplied from the serial digital video signal formingsections 60-1, 60-2, . . . , 60-n to the parallel data forming section11 is defined as an operation mode 2.

The parallel data forming section 11 shown in FIG. 9 also incorporates adata processing section PD1 to the HD-SDI signal DHS1, a data processingsection PD2 to the HD-SDI signal DHS2, . . . , a data processing sectionPDn to the HD-SDI signal DHSn, as shown in FIG. 2, in the same manner asthe parallel data forming section 11 shown in FIG. 1. In addition, amode selection controlling section 21, which was disposed in theparallel data forming section 11, detects identification data: PayloadID which is included in word string data Dh1 to Dhn formed in the dataprocessing sections PD1 to Pdn, and detects an operation mode at thattime, for example, the operation mode 1 in which HD-SDI signals DHS1 toDHS5 of 5 channels are supplied from the serial digital video signalforming sections 60-1, 60-2, . . . , 60-n to the parallel data formingsection 11, or the operation mode 2 in which HD-SDI signals DHS1 to DHS6of 6 channels are supplied from the serial digital video signal formingsections 60-1, 60-2, . . . , 60-n to the parallel data forming section11, and sends away a mode selection control signal CMT for having anentirety of the example shown in FIG. 9 taken a data processing modewhich corresponds to the detected operation mode. As a result of that,the example shown in FIG. 9 is to take a data processing mode which fitsin with an operation mode at that time, across its entirety.

Other portions in the embodiment 3 shown in FIG. 9 are similar tocorresponding portions in the embodiment 1 shown in FIG. 1, andtherefore, blocks and signals or data in FIG. 9, which correspond toblock and signals or data shown in FIG. 1, are described with referencenumerals and signs which are shared with FIG. 1, so that overlappedexplanations will be omitted.

In the suchlike embodiment 3 shown in FIG. 9 which is one example of adata transmitting apparatus of the invention, after multiplexingprocessing was applied to HD-SDI signals DHS1 to DHSn of n channels, forexample, 5 channels or 6 channels, which are based on SD signals DSD11to DSD1 p, DSD21 to DSD2 p, . . . , DSDn1 to DSDnp of p×n channels, forexample, 20 channels or 24 channels, they can be converted into bitstring data DTG in which a bit rate is set to 10 Gb/s or more, forexample, 10.692 Gb/s, and sent away so as to transmit it. Therefore, itbecomes possible to realize serial transmission as to SD signals ofmultiple channels under such a state that multiplexing processing wasapplied to them, as one which is available for practical use.

Embodiment 4

FIG. 10 shows one example (embodiment 4) of a data transmittingapparatus according to an embodiment of the invention.

In the example shown in FIG. 10, i.e., in the embodiment 4, on an inputterminal side of a parallel data forming section 11 which is to be thesame as the parallel data forming section 11 shown in FIG. 1, q pieces,for example, 3 pieces or 2 pieces of serial digital video signal formingsections 61-1 to 61-q are provided. To the serial digital video signalforming section 61-1, SD signals DSD11 to DSD1 p of p channels, forexample, 4 channels, in each of which a bit rate is set to standardized270 Mb/s, are supplied as serial digital video signals of p channelsforming bit string data each of which has a lower bit rate defined by astandard than a bit rate of HD-SDI signals in which a bit rate is to beset to standardized 1.485 Gb/s, . . . , and, to the serial digital videosignal forming section 61-q, SD signals DSDq1 to DSDqp of p channels,for example, 4 channels, in each of which a bit rate is set tostandardized 270 Mb/s, are supplied as serial digital video signals of pchannels forming bit string data each of which has a lower bit ratedefined by a standard than a bit rate of HD-SDI signals.

In this manner, to q pieces of the serial digital video signal formingsections 61-1 to 61-q, SD signals DSD11 to DSD1 p, . . . , DSDq1 toDSDqp of p×q channels, for example, 12 channels or 8 channels aresupplied. Each of these SD signals DSD11 to DSD1 p, . . . , DSDq1 toDSDqp are to be obtained as a result of serialization of D1 signals inwhich, for example, a frame rate is set to 30 Hz or 25 Hz, and a linenumber in each frame is set to 525 lines or 625 lines, and a word bitnumber (quantifying bit number) is set to 10 bits, and which wasconfigured by applying word multiplexing processing to a Y data seriesand a C_(B)/C_(R) data series.

Then, the serial digital video signal forming section 61-1 appliesmultiplexing processing which conforms to, for example, SMPTE 349M whichwas established by SMPTE, to SD signals DSD11 to DSD1 p of p channels,and forms a HD-SDI signal DHS1 of 1 channel which is based on the SDsignals DSD11 to DSD1 p of p channels, . . . , and the serial digitalvideo signal forming section 61-q applies multiplexing processing whichconforms to, for example, SMPTE 349M which was established by SMPTE, toSD signals DSDq1 to DSDgp of p channels, and forms a HD-SDI signal DHSqof 1 channel which is based on the SD signals DSDq1 to DSDqp of pchannels.

As a result of that, from q pieces of the serial digital video signalforming sections 61-1 to 61-q, HD-SDI signals DHS1 to DHSq of qchannels, for example, 3 channels or 2 channels are obtained, and theyare supplied to the parallel data forming section 11. Each of theseHD-SDI signals DHS1 to DHSq of q channels are also to be obtained byserialization of HD signals in which, for example, a frame rate is setto 30 Hz or 25 Hz, and an all line number in each frame and an allsample number in each line are set to 525 lines and 4719 samples, or 625lines and 4752 samples, respectively, and a word bit number (quantifyingbit number) is set to 10 bits, and a data format is set to a Y,C_(B)/C_(R) format.

In addition, to the parallel data forming section 11, HD-SDI signalsDHD1 to DHDr of r (=n−q) channels, for example, 2 channels or 3channels, each of which is to have a bit rate of standardized 1.485 Gb/sare supplied. Each of the suchlike HD-SDI signals DHD1 to DHDr of rchannels is also to be equivalent to ones which are obtained as a resultof serialization of HD signals in which, for example, a frame rate isset to 30 Hz, 25 Hz or 24 Hz, and an effective line number in each frameand an effective word number in each line are set to 1080 lines and 1920words, and a word bit number (quantifying bit number) is set to 10 bits,and a data format is set to a Y, C_(B)/C_(R) format.

As a result of that, to the parallel data forming section 11, HD-SDIsignals DHS1 to DHSq and DHD1 to DHDr of n channels, for example, 5channels in total of HD-SDI signals DHS1 to DHSq of q channels from qpieces of the serial digital video signal forming sections 61-1 to 61-qand HD-SDI signals DHD1 to DHDr of r(=n−q) channels, are to be supplied.Then, such the parallel data forming section 11 shown in FIG. 10 alsoincorporates n pieces of data processing sections to the HD-SDI signalsDHS1 to DHSq and DHD1 to DHDr of n channels, which correspond to thedata processing sections PD1, PD2, . . . , PDn in the parallel dataforming section 11 shown in FIG. 1.

Other portions in the embodiment 4 shown in FIG. 10 are similar tocorresponding portions in the embodiment 1 shown in FIG. 1, andtherefore, blocks and signals or data in FIG. 10, which correspond toblock and signals or data shown in FIG. 1, are described with referencenumerals and signs which are shared with FIG. 1, so that overlappedexplanations will be omitted.

In the suchlike embodiment 4 shown in FIG. 10 which is one example of adata transmitting apparatus of the invention, after multiplexingprocessing was applied to HD-SDI signals DHS1 to DHSq and DHD1 to DHDrof n channels, for example, 5 channels, which are based on SD signalsDSD11 to DSD1 p, . . . , DSDq1 to DSDgp of p×q channels, for example, 12channels or 8 channels, and HD-SDI signal DHD1 to DHDr of r=n−qchannels, for example, 2 channels or 3 channels, they can be convertedinto bit string data DTG in which a bit rate is set to 10 Gb/s or more,for example, 10.692 Gb/s, and sent away so as to transmit it. Therefore,it becomes possible to realize serial transmission as to SD signals andHD-SDI signals of multiple channels under such a basis that multiplexingprocessing was applied to them, as one which is available for practicaluse.

Embodiment 5

FIG. 11 shows one example (embodiment 5) of a data transmittingapparatus according to an embodiment of the invention.

In the example, a portion of which is shown in FIG. 11, i.e., in theembodiment 5, on an input terminal side of a parallel data formingsection 11 which is to be the same as the parallel data forming section11 shown in FIG. 1, 1 piece of a serial digital video signal formingsection 62 is provided. To the serial digital video signal formingsection 62, SD signals DSD11 to DSD1 p of p channels, for example, 4channels, in each of which a bit rate is set to standardized 270 Mb/s,are supplied as serial digital video signals of p channels forming bitstring data each of which has a lower bit rate defined by a standardthan a bit rate of HD-SDI signals in which a bit rate is to be set tostandardized 1.485 Gb/s. Each of these SD signals DSD11 to DSD1 p is tobe obtained as a result of serialization of a D1 signal in which, forexample, a frame rate is set to 30 Hz or 25 Hz, and a line number ineach frame is set to 525 lines or 625 lines, and a word bit number(quantifying bit number) is set to 10 bits, and which was configured byapplying word multiplexing processing to a Y data series and aC_(B)/C_(R) data series.

The serial digital video signal forming section 62 applies multiplexingprocessing which conforms to, for example, SMPTE 349M which wasestablished by SMPTE, to SD signals DSD11 to DSD1 p of p channels, andforms a HD-SDI signal DHS1 of 1 channel which is based on the SD signalsDSD11 to DSD1 p of p channels. By that means, from the serial digitalvideo signal forming sections 62, the HD-SDI signals DHS1 of 1 channelis obtained, and it is supplied to the parallel data forming section 11.This HD-SDI signal DHS1 of 1 channel is also to be obtained byserialization of HD signals in which, for example, a frame rate is setto 30 Hz or 25 Hz, and an all line number in each frame and an allsample number in each line are set to 525 lines and 4719 samples, or 625lines and 4752 samples, respectively, and a word bit number (quantifyingbit number) is set to 10 bits, and a data format is set to a Y,C_(B)/C_(R) format.

In addition, to the parallel data forming section 11, HD-SDI signalsDHD1 to DHDr of r channels, for example, 4 channels, each of which is tohave a bit rate of standardized 1.485 Gb/s are supplied. Each of thesuchlike HD-SDI signals DHD1 to DHDr of r channels is also to beequivalent to ones which are obtained as a result of serialization of HDsignals in which, for example, a frame rate is set to 30 Hz, 25 Hz or 24Hz, and an effective line number in each frame and an effective wordnumber in each line are set to 1080 lines and 1920 words, and a word bitnumber (quantifying bit number) is set to 10 bits, and a data format isset to a Y, C_(B)/C_(R) format.

As a result of that, to the parallel data forming section 11, HD-SDIsignals DHS1 and DHD1 to DHDr of n channels, for example, 5 channels, intotal of a HD-SDI signal DHS1 of 1 channel from the serial digital videosignal forming sections 62 and HD-SDI signals DHD1 to DHDr of rchannels, are to be supplied. Then, such the parallel data formingsection 11 shown in FIG. 11 also incorporates n pieces of dataprocessing sections to the HD-SDI signals DHS1 and DHD1 to DHDr of nchannels, which correspond to the data processing sections PD1, PD2, . .. , PDn in the parallel data forming section 11 shown in FIG. 1.

Then, portions a part of which is omitted to be illustrated in theembodiment 5 shown in FIG. 11 are to be similar to correspondingportions in the embodiment 1 shown in FIG. 1.

In the suchlike embodiment 5 shown in FIG. 11 which is one example of adata transmitting apparatus of the invention, after multiplexingprocessing was applied to HD-SDI signals DHS1 and DHD1 to DHDr of nchannels, for example, 5 channels, which are based on SD signals DSD11to DSD1 p of p channel, for example, 4 channel, and HD-SDI signals DHD1to DHDr of r channels, for example, 4 channels, they can be convertedinto bit string data DTG in which a bit rate is set to 10 Gb/s or more,for example, 10.692 Gb/s, and sent away so as to transmit it. Therefore,it becomes possible to realize serial transmission as to SD signals andHD-SDI signals of multiple channels under such a basis that multiplexingprocessing was applied to them, as one which is available for practicaluse.

Embodiment 6

FIG. 12 shows one example (embodiment 6) of a data transmittingapparatus according to an embodiment of the invention.

In the example a part of which is shown in FIG. 12, i.e., in theembodiment 6, on an input terminal side of a parallel data formingsection 11 which is to be the same as the parallel data forming section11 shown in FIG. 1, q pieces, for example, 4 pieces of serial digitalvideo signal forming sections 63-1 to 63-q are provided. To the serialdigital video signal forming section 63-1, SD signals DSD11 to DSD1 p ofp channels, for example, 4 channels, in each of which a bit rate is setto standardized 270 Mb/s, are supplied as serial digital video signalsof p channels forming bit string data each of which has a lower bit ratedefined by a standard than a bit rate of HD-SDI signals in which a bitrate is to be set to standardized 1.485 Gb/s, . . . , and, to the serialdigital video signal forming section 63-q, SD signals DSDq1 to DSDgp ofp channels, for example, 4 channels, in each of which a bit rate is setto standardized 270 Mb/s, are supplied as serial digital video signalsof p channels forming bit string data each of which has a lower bit ratedefined by a standard than a bit rate of HD-SDI signals.

In this manner, to q pieces of the serial digital video signal formingsections 63-1 to 63-q, SD signals DSD11 to DSD1 p, . . . , DSDq1 toDSDgp of p×q channels, for example, 16 channels are supplied. Each ofthese SD signals DSD11 to DSD1 p, . . . , DSDq1 to DSDqp are to beobtained as a result of serialization of D1 signals in which, forexample, a frame rate is set to 30 Hz or 25 Hz, and a line number ineach frame is set to 525 lines or 625 lines, and a word bit number(quantifying bit number) is set to 10 bits, and which was configured byapplying word multiplexing processing to a Y data series and aC_(B)/C_(R) data series.

Then, the serial digital video signal forming section 63-1 appliesmultiplexing processing which conforms to, for example, SMPTE 349M whichwas established by SMPTE, to SD signals DSD11 to DSD1 p of p channels,and forms a HD-SDI signal DHS1 of 1 channel which is based on the SDsignals DSD11 to DSD1 p of p channels, . . . , and the serial digitalvideo signal forming section 63-q applies multiplexing processing whichconforms to, for example, SMPTE 349M which was established by SMPTE, toSD signals DSDq1 to DSDgp of p channels, and forms a HD-SDI signal DHSqof 1 channel which is based on the SD signals DSDq1 to DSDqp of pchannels.

As a result of that, from q pieces of the serial digital video signalforming sections 63-1 to 63-q, HD-SDI signals DHS1 to DHSq of qchannels, for example, 4 channels are obtained, and they are supplied tothe parallel data forming section 11. Each of these HD-SDI signals DHS1to DHSq of q channels is also to be obtained by serialization of HDsignals in which, for example, a frame rate is set to 30 Hz or 25 Hz,and an all line number in each frame and an all sample number in eachline are set to 525 lines and 4719 samples, or 625 lines and 4752samples, respectively, and a word bit number (quantifying bit number) isset to 10 bits, and a data format is set to a Y, C_(B)/C_(R) format.

In addition, to the parallel data forming section 11, a HD-SDI signalsDHD1 of 1 channel, which is to have a bit rate of standardized 1.485Gb/s, is supplied. This HD-SDI signal DHD1 of 1 channel is also to beequivalent to one which is obtained as a result of serialization of HDsignals in which, for example, a frame rate is set to 30 Hz, 25 Hz or 24Hz, and an effective line number in each frame and an effective wordnumber in each line are set to 1080 lines and 1920 words, and a word bitnumber (quantifying bit number) is set to 10 bits, and a data format isset to a Y, C_(B)/C_(R) format.

As a result of that, to the parallel data forming section 11, HD-SDIsignals DHS1 to DHSq and DHD1 of n channels, for example, 5 channels intotal of HD-SDI signals DHS1 to DHSq of q channels from q pieces of theserial digital video signal forming sections 63-1 to 63-q and the HD-SDIsignal DHD1 of 1 channel, are to be supplied. Then, such the paralleldata forming section 11 shown in FIG. 12 also incorporates n pieces ofdata processing sections to the HD-SDI signals DHS1 to DHSq and DHD1 ofn channels, which correspond to the data processing sections PD1, PD2, .. . , PDn in the parallel data forming section 11 shown in FIG. 1.

Then, portions a part of which is omitted to be illustrated in theembodiment 6 shown in FIG. 12 are to be similar to correspondingportions in the first example shown in FIG. 1.

In the suchlike embodiment 6 shown in FIG. 12 which is one example of adata transmitting apparatus of the invention, after multiplexingprocessing was applied to HD-SDI signals DHS1 to DHSq and DHD1 of nchannels, for example, 5 channels, which are based on SD signals DSD11to DSD1 p, . . . , DSDq1 to DSDqp of p×q channels, for example, 16channels and HD-SDI signals DHD1 of 1 channel, they can be convertedinto bit string data DTG in which a bit rate is set to 10 Gb/s or more,for example, 10.692 Gb/s, and sent away so as to transmit it. Therefore,it becomes possible to realize serial transmission as to SD signals andHD-SDI signals of multiple channels under such a basis that multiplexingprocessing was applied to them, as one which is available for practicaluse.

Embodiment 7

FIG. 13 shows one example (embodiment 7) of a data receiving apparatusof the invention.

In the example shown in FIG. 13, i.e., in the embodiment 7, an opticalsignal DL, which comes through an optical signal transmission cable 31formed by an optical fiber etc., is received by a photoelectricconverting section 32 which forms a data receiving section. The opticalsignal DL is to correspond to the optical signal DL which is sent awayso as to be transmitted in the embodiment 1 shown in FIG. 1, and whichis obtained by conversion of bit string data DTG in which a bit rate isto be 10 Gb/s or more, for example, 10.692 Gb/s.

The photoelectric converting section 32 converts the optical signal DLinto bit string data DTG in which a bit rate is set to 10 Gb/s or more,for example, 10.692 Gb/s. and supplies the bit string data DTG to a S/Pconverting and multiple channel data forming section 33. the S/Pconverting and multiple channel data forming section 33 applies S/Pconversion to the bit string data DTG, and forms bit string data DSX ofm channels (m is an integer of 3 or more), for example, 16 channels, ineach of which a bit rate is to be set to, for example, 668.25 Mb/s. Bythat means, the bit string data DSX of 16 channels, which are obtainedfrom the S/P converting and multiple channel data forming section 33, issupplied to a data multiplexing section 34.

The data multiplexing section 34 multiplexes the bit string data DSX of16 channels, and forms word string data Dq which is to be multiplex wordstring data. By that means, the word string data Dq, which is obtainedfrom the data multiplexing section 34, is written in a memory section35, by 64 bits thereof at a time, with a writing clock signal QW4 inwhich frequency is set to 167.0625 MHz. Then, the word string data Dq,which was written in the memory section 35, is read out from the memorysection 35, by 128 bits at a time, with a reading clock signal QR4 inwhich frequency is set to 83.53125 MHz, and supplied to a bit/wordsynchronization setup section 36 as word string data Dr.

In this manner, the word string data Dr, which is supplied to thebit/word synchronization setup section 36, is to take a line portiondata structure as shown in, for example, A, B or C of FIG. 6, or A, B orC of FIG. 7. Then, in the bit/word synchronization setup section 36,detection of “K28.5” of successive 2 bytes, which is included in theword string data Dr, is carried out, and on the basis of its detectionresult, bit synchronization and word synchronization are established. Inaddition, a mode selection controlling section 37, which was disposed inthe bit/word synchronization setup section 36, detects identificationdata: Payload Id which is included in word string data Dr, and detects adata content of the word string data Dr, and sends away a mode selectioncontrol signal CMR for having an entirety of the example shown in FIG.13 taken a data processing mode which corresponds to the detected datacontent. As a result of that, the example shown in FIG. 13 is to take adata processing mode which fits in with a data content of the wordstring data Dr, across its entirety.

The word string data Dr, which passed through the bit/wordsynchronization setup section 36, is supplied to a data lengthconverting section 38. In the data length converting section 38, to theword string data Dr, data length conversion processing for converting128 bits thereof into 50×n bits (n is an integer of 2 or more, which issmaller than m) is applied, to form word string data Do. On thatoccasion, in case that additional data, which was added at the time oftransmission, is included in the word string data Dr, the additionaldata is removed.

Then, the word string data Do, which is obtained from the data lengthconverting section 38, is written in a memory section 39, by 50×n bitsthereof at a time, with a writing clock signal QW5 in which frequency isset to 83.53125/2 MHz≈41.766 MHz. Then, the word string data Do, whichwas written in the memory section 39, is read out by 50×n bits at atime, with a reading clock signal QR5 in which frequency is set to74.25/2 MHz=37.125 MHz, and supplied to a data separating section 40 asmultiplex word string data Dm.

In the data separating section 40, word separation processing is appliedto the multiplex word string data Dm, and word string data De1 to Den ofn channels are separated and taken out from the multiplex word stringdata Dm. As to these word string data De1 to Den of n channels, whichare separated in the data separating section 40, each of them is to besent away from the data separating section 40, by 50 bits at a time, andsupplied to a serial data forming section 41.

The serial data forming section 41 incorporates, as shown in FIG. 14, adata processing section PR1 to the word string data De1, a dataprocessing section PR2 to the word string data De2, . . . , a dataprocessing section PRn to the word string data Den.

In the data processing section PR1, to the word string data De1 which isapplied thereto, 8B/10B decoding conversion, by which 50 bits thereofare converted into 40 bits sequentially, is applied, in an 8B/10Bdecoding converting section 42, and word string data Dd1 is formed.Then, the word string data Dd1, which is obtained from the 8B/10Bdecoding converting section 42, is supplied to a K.28.5/P.ID replacingsection 43.

In the K28.5/P.ID replacing section 43, it carries out data replacementprocessing for replacing 8 bit word data which was inserted into thefront of each line blanking portion of the word string data Dd1 andbecomes “K28.5” when 8B/10B conversion processing of 2 bytes is carriedout, and 8 bit word data which becomes identification data: Payload IDwhen 8B/10B conversion processing of 3 bytes is carried out, with 4words (3FF(Y), 3FF(C), 000(Y), 000(C)) which configures timing referencecode data EAV.

From the K28.5/P.ID replacing section 43, the word string data Dd1, inwhich the front of each line blanking portion was replaced with 4 wordswhich configure timing reference code SAV or EAV, is sent away by 40bits at a time, and the word string data Dd1 is written in a FIFO memorysection 44, by 40 bits at a time, with a writing clock signal QW6 inwhich frequency is set to 74.25/2 MHz=37.125 MHz. Subsequently, the wordstring data Dd1, which was written in the FIFO memory section 44, isread out by 20 bits at a time, with a reading clock signal QR6 in whichfrequency is set to 74.25 MHz, and word string data Dh1, which forms aHD signal as a parallel digital video signal with a 20 bit wordstructure, is formed, and the word string data Dh1 is supplied to a P/Sconverting section 45. This word string data Dh1 is to have a lineportion data structure as shown in, for example, FIG. 3.

In the P/S converting section 45, P/S conversion is applied to the wordstring data Dh1, to form a HD-SDI signal DHS1 which is based on the wordstring data Dh1 and which is a serial digital video signal in which abit rate is set to standardized 1.485 Gb/s. Then, the HD-SDI signalDHS1, which is formed in this P/S converting section 45, is used asoutput data from the data processing section PR1.

In addition, in the data processing section PR2, to the word string dataDe2 which is applied thereto, 8B/10B decoding conversion, by which 50bits thereof are converted into 40 bits sequentially, is applied, in an8B/10B decoding converting section 46, and word string data Dd2 isformed. Then, the word string data Dd2, which is obtained from the8B/10B decoding converting section 46, is written in a FIFO memorysection 47, by 40 bits at a time, with a writing clock signal QW6 inwhich frequency is set to 74.25/2 MHz=37.125 MHz.

Subsequently, the word string data Dd2, which was written in the FIFOmemory section 47, is read out by 20 bits at a time, with a readingclock signal QR6 in which frequency is set to 74.25 MHz, and word stringdata Dh2, which forms a HD signal as a parallel digital video signalwith a 20 bit word structure, is formed, and the word string data Dh2 issupplied to a P/S converting section 48. This word string data Dh2 is toalso have a line portion data structure as shown in, for example, FIG.3.

In the P/S converting section 48, P/S conversion is applied to the wordstring data Dh2, to form a HD-SDI signal DHS2 which is based on the wordstring data Dh2 and which is a serial digital video signal in which abit rate is set to standardized 1.485 Gb/s. Then, the HD-SDI signalDHS2, which is formed in this P/S converting section 48, is used asoutput data from the data processing section PR2.

Each of the data processing sections PR3 to PRn is also the same as thedata processing section PR2, and in the data conversion, by which 50bits thereof are converted into 40 bits sequentially, is applied, in an8B/10B decoding converting section 46, and word string data Dd2 isformed. Then, the word string data Dd2, which is obtained from the8B/10B decoding converting section 46, is written in a FIFO memorysection 47, by 40 bits at a time, with a writing clock signal QW6 inwhich frequency is set to 74.25/2 MHz=37.125 MHz.

Subsequently, the word string data Dd2, which was written in the FIFOmemory section 47, is read out by 20 bits at a time, with a readingclock signal QR6 in which frequency is set to 74.25 MHz, and word stringdata Dh2, which forms a HD signal as a parallel digital video signalwith a 20 bit word structure, is formed, and the word string data Dh2 issupplied to a P/S converting section 48. This word string data Dh2 is toalso have a line portion data structure as shown in, for example, FIG.3.

In the P/S converting section 48, P/S conversion is applied to the wordstring data Dh2, to form a HD-SDI signal DHS2 which is based on the wordstring data Dh2 and which is a serial digital video signal in which abit rate is set to standardized 1.485 Gb/s. Then, the HD-SDI signalDHS2, which is formed in this P/S converting section 48, is used asoutput data from the data processing section PR2.

Each of the data processing sections PR3 to PRn is also the same as thedata processing section PR2, and in the data processing sections PR3 toPRn, the same processing as processing which is carried out to the wordstring data De2 to be supplied to the data processing section PR2 iscarried out to word string data De3 to Den which are supplied to them,respectively, and from the data processing sections PR3 to PRn, HD-SDIsignals DHS3 to DHSn, which are serial digital video signals in each ofwhich a bit rate is set to standardized 1.485 Gb/s, are obtained asoutput data.

In this manner, the HD-SDI signals DHS1 to DHSn of n channels, which areobtained from each of the data processing sections PR1 to PRn as outputdata, are sent away from a serial data forming section 41 as reproducedHD-SDI signals.

As described above, in the embodiment 7 which is one example of a datareceiving apparatus of the invention, it can receive bit string data DTGin which, for example, a bit rate is set to 10 Gb/s or more, forexample, 10.692 Gb/s, and reproduce HD-SDI signals DHS1 to DHSn of nchannels, which are serial digital video signals of n channels formingbit string data each of which has a bit rate defined by a standard, fromthe received bit string data DTG. Therefore, on the occasion of serialtransmission of HD-SDI signals having a bit rate which is to bestandardized 1.485 Gb/sit under such a basis that multiple channelsthereof were multiplexed, it becomes possible to configure thatreceiving side apparatus.

Embodiment 8

FIG. 15 shows one example (embodiment 8) of a data receiving apparatusof the invention.

In the example shown in FIG. 15, i.e., in the embodiment 8, on an outputterminal side of a serial data forming section 41 which is to be thesame as the serial data forming section 41 shown in FIG. 13, a specificdigital video signal forming section 50 is provided. To the specificparallel digital video signal forming section 50, HD-SDI signals DHS1 toDHSn of n channels, which are obtained from the serial data formingsection 41, are supplied. On such occasion, the HD-SDI signals DHS1 toDHSn of n channels, which are obtained from the serial data formingsection 41, are ones which were formed by applying conversion processingto specific parallel digital video signals which are to be any one ofnext generation camera signals, HD super motion signals, 4 k×2 k signalsetc., and which form word string data configured with a specific framerate, a quantifying bit number, and parallel arrangement of green color,blue color and red color original color signal data series.

In the specific parallel digital video signal forming section 50, theHD-SDI signals DHS1 to DHSn of n channels are converted into specificparallel digital video signals DSV which are to be any one of nextgeneration camera signals, HD super promotion signals, 4 k×2 k signalsetc., under such a basis that auxiliary bit is removed in case thatthere is the auxiliary bit which was added on the occasion of conversionfrom specific parallel digital video signals. By that means, from thespecific parallel digital video signal forming section 50, the specificparallel digital video signals DSV, which are to be any one of nextgeneration camera signals, HD super promotion signals, 4 k×2 k signalsetc. which were reproduced on the basis of bit string data DTG in whicha bit rate is set to 10 Gb/s or more, for example, 10.692 Gb/s, are sentaway.

Other portions in the embodiment 8 shown in FIG. 15 are similar tocorresponding portions in the embodiment 7 shown in FIG. 13, andtherefore, blocks and signals or data in FIG. 15, which correspond toblock and signals or data shown in FIG. 13, are described with referencenumerals and signs which are shared with FIG. 13, so that overlappedexplanations will be omitted.

In the suchlike embodiment 8 shown in FIG. 15 which is one example of adata receiving apparatus of the invention, it can receive bit stringdata DTG in which, for example, a bit rate is set to 10 Gb/s or more,for example, 10.692 Gb/s, and reproduce the specific parallel digitalvideo signals DSV which are to be any one of next generation camerasignals, HD super promotion signals, 4 k×2 k signals etc. and which formword string data configured with a specific frame rate, a quantifyingbit number, and parallel arrangement of green color, blue color and redcolor original color signal data series. Therefore, on the occasion ofserial transmission as to any one of next generation camera signals, HDsuper promotion signals, 4 k×2 k signals etc., it becomes possible toconfigure that receiving apparatus.

Embodiment 9

FIG. 16 shows one example (embodiment 9) of a data receiving apparatusof the invention.

In the example shown in FIG. 16, i.e., in the embodiment 9, on an outputterminal side of a serial data forming section 41 which is to be thesame as the serial data forming section 41 shown in FIG. 13, n pieces,for example, 5 pieces or 6 pieces of parallel digital video signalforming sections 65-1, 65-2, . . . , 65-n are provided. To the paralleldigital video signal forming sections 65-1 to 65-n, HD-SDI signals DHS1to DHSn of n channels, which are obtained from the serial data formingsection 41, are supplied. On such occasion, the HD-SDI signals DHS1 toDHSn of n channels, which are obtained from the serial data formingsection 41, are to be ones which were formed by applying conversionprocessing to SD signals of multiple channels, which are serial digitalvideo signals forming bit string data each of which has a lower bit ratedefined by a standard than a bit rate of HD-SDI signals.

In the parallel digital video signal forming section 65-1, processing,which is opposite to multiplexing processing which conforms to, forexample, SMPTE 349M established by SMPTE, for forming HD-SDI signals asto SD signals of multiple channels, is applied to the HD-SDI signalDHS1, and it is converted into SD signals DSD11 to DSD1 p of p channels,for example, 4 channels, which are based on the HD-SDI signal DHS1, andare serial digital video signals forming bit string data each of whichhas a lower bit rate defined by a standard than a bit rate of HD-SDIsignals. In the same manner, in the parallel digital video signalforming section 65-2, processing, which is opposite to multiplexingprocessing which conforms to, for example, SMPTE 349M established bySMPTE, for forming HD-SDI signals as to SD signals of multiple channels,is applied to the HD-SDI signal DHS2, and it is converted into SDsignals DSD21 to DSD2 p of p channels, for example, 4 channels, whichare based on the HD-SDI signal DHS2, . . . , and in the parallel digitalvideo signal forming section 65-n, processing, which is opposite tomultiplexing processing which conforms to, for example, SMPTE 349Mestablished by SMPTE, for forming HD-SDI signals as to SD signals ofmultiple channels, is applied to the HD-SDI signal DHSn, and it isconverted into SD signals DSDn1 to DSDnp of p channels, for example, 4channels, which are based on the HD-SDI signal DHSn.

By that means, from n pieces of the parallel digital video signalforming sections 65-1, 65-2, . . . , 65-n, SD signals DSD11 to DSD1 p,DSD21 to DSD2 p, . . . , DSDn1 to DSDnp of n×p channels, for example 20channels or 24 channels, in each of which, for example, a bit rate isset to standardized 270 Mb/s, are sent away.

Other portions in the embodiment 9 shown in FIG. 16 are similar tocorresponding portions in the embodiment 7 shown in FIG. 13, andtherefore, blocks and signals or data in FIG. 16, which correspond toblock and signals or data shown in FIG. 13, are described with referencenumerals and signs which are shared with FIG. 13, so that overlappedexplanations will be omitted.

In the suchlike embodiment 9 shown in FIG. 16 which is one example of adata receiving apparatus of the invention, it can receive bit stringdata DTG in which, for example, a bit rate is set to 10 Gb/s or more,for example, 10.692 Gb/s, and reproduce SD signals of for example, 20channels or 24 channels, which are serial digital video signal formingbit string data each of which has a lower bit rate defined by a standardthan a bit rate of HD-SDI signals, from the received bit string dataDTG. Therefore, on the occasion of serial transmission as to SD signalsof multiple channels under such a basis that they were multiplexed, itbecomes possible to configure that receiving apparatus.

Embodiment 10

FIG. 17 shows one example (embodiment 10) of a data receiving apparatusof the invention.

In the example shown in FIG. 17, i.e., in the embodiment 10, on anoutput terminal side of a serial data forming section 41 which is to bethe same as the serial data forming section 41 shown in FIG. 13, qpieces, for example, 3 pieces or 2 pieces of parallel digital videosignal forming sections 66-1 to 66-q are provided. To the paralleldigital video signal forming sections 66-1 to 66-q, HD-SDI signals DHS1to DHSq of q channels, out of HD-SDI signals of n channels, for example,5 channels, which are obtained from the serial data forming section 41,are supplied, respectively. On such occasion, the HD-SDI signals DHS1 toDHSq of q channels, which are obtained from the serial data formingsection 41, are to be ones which were formed by applying conversionprocessing to SD signals of multiple channels, which are serial digitalvideo signals forming bit string data each of which has a lower bit ratedefined by a standard than a bit rate of HD-SDI signals.

In the parallel digital video signal forming section 66-1, processing,which is opposite to multiplexing processing which conforms to, forexample, SMPTE 349M established by SMPTE, for forming HD-SDI signals asto SD signals of multiple channels, is applied to the HD-SDI signalDHS1, and it is converted into SD signals DSD11 to DSD1 p of p channels,for example, 4 channels, which are based on the HD-SDI signal DHS1, andare serial digital video signals forming bit string data each of whichhas a lower bit rate defined by a standard than a bit rate of HD-SDIsignals, . . . , and in the parallel digital video signal formingsection 66-q, processing, which is opposite to multiplexing processingwhich conforms to, for example, SMPTE 349M established by SMPTE, forforming HD-SDI signals as to SD signals of multiple channels, is appliedto the HD-SDI signal DHSq, and it is converted into SD signals DSDq1 toDSDgp of p channels, for example, 4 channels, which are based on theHD-SDI signal DHSq.

By that means, from q pieces of the parallel digital video signalforming sections 66-1 to 66-q, SD signals DSD11 to DSD1 p, . . . , DSDq1to DSDgp of q×p channels, for example 12 channels or 8 channels, in eachof which, for example, bit rate is set to standardized 270 Mb/s, aresent away.

In addition, in the embodiment 10 shown in FIG. 17, from the serial dataforming section 41, HD-SDI signals DHD1 to DHDr of r (=n−q) channels,for example, 2 channels or 3 channels, out of HD-SDI signals of nchannels, for example, 5 channels, which are obtained therein, are sentaway. Each of these HD-SDI signals DHD1 to DHDr of r (=n−q) channels areto be ones in which a bit rate is set to standardized 1.485 Gb/s.

Therefore, in the embodiment 10 shown in FIG. 17, on the basis of HD-SDIsignals of n channels, for example, 5 channels, which are obtained fromthe serial data forming section 41, SD signals DSD11 to DSD1 p, . . . ,DSDq1 to DSDgp of q×p channels, for example, 12 channels or 8 channels,and HD-SDI signals DHS1 to DHDr of r (=n−q) channels, for example, 2channels or 3 channels, are to be reproduced and sent away.

Other portions in the embodiment 10 shown in FIG. 17 are similar tocorresponding portions in the embodiment 7 shown in FIG. 13, andtherefore, blocks and signals or data in FIG. 17, which correspond toblock and signals or data shown in FIG. 13, are described with referencenumerals and signs which are shared with FIG. 13, so that overlappedexplanations will be omitted.

In the suchlike embodiment 10 shown in FIG. 17 which is one example of adata receiving apparatus of the invention, it can receive bit stringdata DTG in which, for example, a bit rate is set to 10 Gb/s or more,for example, 10.692 Gb/s, and reproduce SD signals of for example, 12channels or 8 channels, which are serial digital video signal formingbit string data each of which has a lower bit rate defined by a standardthan a bit rate of HD-SDI signals, and HD-SDI signals of multiplechannels, for example, 2 channels or 3 channels, from the received bitstring data DTG. Therefore, on the occasion of serial transmission as toSD signals and HD-SDI signals of multiple channels under such a basisthat they were mixed and multiplexed, it becomes possible to configurethat receiving apparatus.

Embodiment 11

FIG. 18 shows one example (embodiment 11) of a data receiving apparatusof the invention.

In the example a part of which is shown in FIG. 18, i.e., in theembodiment 11, on an output terminal side of a serial data formingsection 41 which is to be the same as the serial data forming section 41shown in FIG. 13, 1 piece of a parallel digital video signal formingsection 67 provided. To the parallel digital video signal formingsection 67, a HD-SDI signal DHS1 of 1 channel, out of HD-SDI signals ofn channels, for example, 5 channels, which are obtained from the serialdata forming section 41, is supplied. On such occasion, the HD-SDIsignal DHS1 of 1 channel, which is obtained from the serial data formingsection 41, is to be one which was formed by applying conversionprocessing to SD signals of multiple channels, which are serial digitalvideo signals forming bit string data each of which has a lower bit ratedefined by a standard than a bit rate of HD-SDI signals.

In the parallel digital video signal forming section 67, processing,which is opposite to multiplexing processing which conforms to, forexample, SMPTE 349M established by SMPTE, for forming HD-SDI signals asto SD signals of multiple channels, is applied to the HD-SDI signalDHS1, and it is converted into SD signals DSD11 to DSD1 p of p channels,for example, 4 channels, which are based on the HD-SDI signal DHS1, andare serial digital video signals forming bit string data each of whichhas a lower bit rate defined by a standard than a bit rate of HD-SDIsignals. By that means, from the parallel digital video signal formingsection 67, SD signals DSD11 to DSD1 p of p channels, for example, 4channels, in each of which, for example, a bit rate is set tostandardized 270 Mb/s, are sent away.

In addition, in the embodiment 11 shown in FIG. 18, from the serial dataforming section 41, HD-SDI signals DHD1 to DHDr of r channels, forexample, 4 channels, out of HD-SDI signals of n channels, for example, 5channels, which are obtained therein, are sent away. Each of theseHD-SDI signals DHD1 to DHDr of r channels are to be ones in which a bitrate is set to standardized 1.485 Gb/s.

Therefore, in the embodiment 11 shown in FIG. 18, on the basis of HD-SDIsignals of n channels, for example, 5 channels, which are obtained fromthe serial data forming section 41, SD signals DSD11 to DSD1 p of pchannels, for example, 4 channels, and HD-SDI signals DHD1 to DHDr of rchannels, for example, 4 channels, are to be reproduced and sent away.

Portions, a part of which is omitted to be illustrated in the embodiment11 shown in FIG. 18, are to be similar to corresponding portions in theembodiment 7 shown in FIG. 13.

In the suchlike embodiment 11 shown in FIG. 18 which is one example of adata receiving apparatus of the invention, it can receive bit stringdata DTG in which, for example, a bit rate is set to 10 Gb/s or more,for example, 10.692 Gb/and reproduce SD signals of for example, 4channels, which are serial digital video signal forming bit string dataeach of which has a lower bit rate defined by a standard than a bit rateof HD-SDI signals, and HD-SDI signals of for example, 4 channels, fromthe received bit string data DTG. Therefore, on the occasion of serialtransmission as to SD signals and HD-SDI signals of multiple channelsunder such a basis that they were mixed and multiplexed, it becomespossible to configure that receiving apparatus.

Embodiment 12

FIG. 19 shows one example (embodiment 12) of a data receiving apparatusof the invention.

In the example a part of which is shown in FIG. 19, i.e. in theembodiment 12, on an output terminal side of a serial data formingsection 41 which is to be the same as the serial data forming section 41shown in FIG. 13, q pieces, for example, 4 pieces of parallel digitalvideo signal forming sections 68-1 to 68-q are provided. To the paralleldigital video signal forming sections 68-1 to 68-q, HD-SDI signals DHS1to DHSq of q channels, out of HD-SDI signals of n channels, for example,5 channels, which are obtained from the serial data forming section 41,are supplied, respectively. On such occasion, the HD-SDI signals DHS1 toDHSq of q channels, which are obtained from the serial data formingsection 41, are to be ones which were formed by applying conversionprocessing to SD signals of multiple channels, which are serial digitalvideo signals forming bit string data each of which has a lower bit ratedefined by a standard than a bit rate of HD-SDI signals.

In the parallel digital video signal forming section 68-1, processing,which is opposite to multiplexing processing which conforms to, forexample, SMPTE 349M established by SMPTE, for forming HD-SDI signals asto SD signals of multiple channels, is applied to the HD-SDI signalDHS1, and it is converted into SD signals DSD11 to DSD1 p of p channels,for example, 4 channels, which are based on the HD-SDI signal DHS1, andare serial digital video signals forming bit string data each of whichhas a lower bit rate defined by a standard than a bit rate of HD-SDIsignals, . . . , and in the parallel digital video signal formingsection 68-q, processing, which is opposite to multiplexing processingwhich conforms to, for example, SMPTE 349M established by SMPTE, forforming HD-SDI signals as to SD signals of multiple channels, is appliedto the HD-SDI signal DHSq, and it is converted into SD signals DSDq1 toDSDgp of p channels, for example, 4 channels, which are based on theHD-SDI signal DHSq.

By that means, from q pieces of the parallel digital video signalforming sections 68-1 to 68-q, SD signals DSD11 to DSD1 p, . . . , DSDq1to DSDgp of q×p channels, for example 16 channels, in each of which, forexample, a bit rate is set to standardized 270 Mb/s, are sent away.

In addition, in the embodiment 12 shown in FIG. 19, from the serial dataforming section 41, a HD-SDI signal DHS1, out of DH-SDI signals of nchannels, for example, 5 channels, which are obtained therein, is sentaway. This HD-SDI signal DHD1 is to be one in which a bit rate is set tostandardized 1.485 Gb/s.

Therefore, in the embodiment 12 shown in FIG. 19, on the basis of HD-SDIsignals of n channels, for example, 5 channels, which are obtained fromthe serial data forming section 41, SD signals DSD11 to DSD1 p, . . . ,DSDq1 to DSDgp of q×p channels, for example, 16 channels, and the HD-SDIsignal DHD1 of 1 channel are to be reproduced and sent away.

Other portions in the embodiment 12 shown in FIG. 19 are similar tocorresponding portions in the embodiment 7 shown in FIG. 13.

In the suchlike embodiment 12 shown in FIG. 19 which is one example of adata receiving apparatus of the invention, it can receive bit stringdata DTG in which, for example, a bit rate is set to 10 Gb/s or more,for example, 10.692 Gb/and reproduce SD signals of for example, 16channels, which are serial digital video signal forming bit string dataeach of which has a lower bit rate defined by a standard than a bit rateof HD-SDI signals, and a HD-SDI signal of 1 channel, from the receivedbit string data DTG. Therefore, on the occasion of serial transmissionas to SD signals of multiple channels and a HD-SDI signals under such abasis that they were mixed and multiplexed, it becomes possible toconfigure that receiving apparatus.

A data transmitting apparatus, which was described in any one of theabove-described embodiment, and a data receiving apparatus, which wasdescribed in any one of the above-described embodiment, are ones whichcan be applied widely in the field of handling digital video signals, asones which can establish a data transmission system which can carry outeffective transmission as to multiple channels of standardized HD-SDIsignals, and can also realize serial transmission as to each of nextgeneration camera signals, HD super motion signals, 4 k×2 k signals etc.in the form which is available for practical use, and further, canpractically carry out serial transmission as to SD signals of multiplechannels, or SD signals and HD-SDI signals of multiple channels, undersuch a basis that multiplexing processing was applied to them.

It should be understood by those skilled in the art that variousmodifications, combinations, sub-combinations and alternations may occurdepending on design requirements and other factors insofar as they arewithin the scope of the appended claims or the equivalents thereof.

1-10. (canceled)
 11. A data receiving apparatus comprising: datareceiving means which receives bit string data in which a bit rate is 10Gb/s or more, as a first serial digital video signal; serial/parallelconverting and multiple channel data forming means which appliesserial/parallel conversion to bit string data which is obtained from thedata receiving means and in which a bit rate is 10 Gb/s or more, to formbit string data of m channels (m is an integer of 3 or more), each ofwhich had a predetermined bit rate; data multiplexing means whichmultiplexes bit string data of m channels which is obtained from theserial/parallel converting and multiple channel data forming means, toform multiplex word string data; data separating means which takes outthe multiplex word string data which is obtained from the datamultiplexing means, by a first predetermined bit number at a time, toobtain first word string data of n channel (n is an integer of 2 ormore, which is smaller than m), each of which has a predetermined wordbit number; a plurality of 10 bit/8 bit converting means to which firstword string data of n channel, which is obtained from the dataseparating means, is supplied, to apply 10 bit/8 bit convertingprocessing to each of the first word string data of n channels by asecond predetermined bit number at a time, and to form second wordstring data of n channels, each of which is made as a parallel digitalvideo signal having a line portion data structure defined by a standard;and a plurality of parallel/serial converting means to which second wordstring data of n channels, which is obtained from the plurality of 10bit/8 bit converting means, is supplied, to obtain second serial digitalvideo signals of n channels forming bit string data, each of which has abit rate defined by a standard.
 12. The data receiving apparatus as setforth in claim 11, wherein said data receiving means converts an opticalsignal, which was received through an optical signal transmission cable,into bit string data in which a bit rate is 10 Gb/s or more, to obtainthe first serial digital video signal.
 13. The data receiving apparatusas set forth in claim 11, wherein multiplex word string data, which isobtained from said data multiplexing means, is written with a writingclock signal having first frequency, and is read out with a readingclock signal having second frequency which is different from said firstfrequency, and is sent to said data separating means.
 14. The datareceiving apparatus as set forth in claim 11, wherein provided are aplurality of memory means, in each which any one of second word stringdata of n channels, which is obtained from said plurality of 10 bit/8bit converting means, and the written second word string data is readout by said second predetermined bit number at a time.
 15. The datareceiving apparatus as set forth in claim 11, wherein provided isspecific parallel digital video signal forming means to which secondserial digital video signals of n channels, forming bit string datawhich is obtained from said plurality of parallel/serial convertingmeans and having bit string data each of which has a bit rate defined bya standard, are supplied, to convert the second serial digital videosignals of n channels into a specific parallel digital signal, whichforms word string data configured with a specific frame rate, aquantifying bit number, and parallel arrangement of green color, bluecolor and red color original color signal data series, and to send itout.
 16. The data receiving apparatus as set forth in claim 11, whereinprovided are n pieces of parallel digital video signal forming means towhich second serial digital video signals of n channels, forming bitstring data which is obtained from said plurality of parallel/serialconverting means and each of which has a bit rate defined by a standard,are supplied, respectively, and each of which converts one of saidsecond serial digital video signals of n channels into third serialdigital video signals of p channels (p is an integer of 2 or more)forming bit string data which had a lower bit rate defined by a standardthan a bit rate of the second serial digital video signal, and sends itout.
 17. The data receiving apparatus as set forth in claim 11, whereinprovided are q pieces of parallel digital video signal forming means towhich q pieces (q is an integer which is smaller than n) out of secondserial digital video signals of n channels forming bit string data whichis obtained from said plurality of parallel/serial converting means andeach of which has a bit rate defined by a standard, are supplied,respectively, and each of which converts one of said second serialdigital video signals of n channels into third serial digital videosignals of p channels forming bit string data which had a lower bit ratedefined by a standard than a bit rate of the second serial digital videosignal, and sends it out.
 18. The data receiving apparatus as set forthin claim 17, wherein provided is one piece of a parallel digital videosignal forming means which converts one of said second serial digitalvideo signals of n channels into third serial digital video signals of pchannels forming bit string data which had a lower bit rate defined by astandard than a bit rate of the second serial digital video signal, andsends it out.
 19. The data receiving apparatus as set forth in claim 17,wherein provided are (n−1) pieces of parallel digital video signalforming means, each of which converts one of said second serial digitalvideo signals of n channels into third serial digital video signals of pchannels forming bit string data which has a lower bit rate defined by astandard than a bit rate of the second serial digital video signal, andsends it out.
 20. (canceled)
 21. A data receiving apparatus comprising:a data receiving section which receives bit string data in which a bitrate is 10 Gb/s or more, as a first serial digital video signal; aserial/parallel converting and multiple channel data forming sectionwhich applies serial/parallel conversion to bit string data which isobtained from the data receiving section and in which a bit rate is 10Gb/s or more, to form bit string data of m channels (m is an integer of3 or more), each of which had a predetermined bit rate; a datamultiplexing section which multiplexes bit string data of m channelswhich is obtained from the serial/parallel converting and multiplechannel data forming section, to form multiplex word string data; a dataseparating section which takes out the multiplex word string data whichis obtained from the data multiplexing section, by a first predeterminedbit number at a time, to obtain first word string data of n channel (nis an integer of 2 or more, which is smaller than m), each of which hasa predetermined word bit number; a plurality of 10 bit/8 bit convertingsections to which first word string data of n channel, which is obtainedfrom the data separating section, is supplied, to apply 10 bit/8 bitconverting processing to each of the first word string data of nchannels by a second predetermined bit number at a time, and to formsecond word string data of n channels, each of which is made as aparallel digital video signal having a line portion data structuredefined by a standard; and a plurality of parallel/serial convertingsections to which second word string data of n channels, which isobtained from the plurality of 10 bit/8 bit converting sections, issupplied, to obtain second serial digital video signals of n channelsforming bit string data, each of which has a bit rate defined by astandard.